Economy consists in a due and proper application of the means afforded according to the ability of the employer and the situation chosen; care being taken that the expenditure is prudently conducted.

Consistency is found in that work whose whole and detail are suitable to the occasion. It arises from circumstance, custom, and nature.

Quicksilver is used for many purposes; without it, neither silver nor brass can be properly gilt.

Perhaps, to the uninformed, it may appear unaccountable that a man should be able to retain in his memory such a variety of learning; but the close alliance with each other, of the different branches of science, will explain the difficulty.

In setting out the walls of a city the choice of a healthy situation is of the first importance: it should be on high ground, neither subject to fogs nor rains; its aspects should be neither violently hot nor intensely cold, but temperate in both respects.

But I, Caesar, have not sought to amass wealth by the practice of my art, having been rather contented with a small fortune and reputation, than desirous of abundance accompanied by a want of reputation.

Music assists him in the use of harmonic and mathematical proportion.

Dimension regulated the general scale of the work, so that the parts may all tell and be effective.

For an object under the eye will appear very different from the same object placed above it; in an inclosed space, very different from the same in an open space.

Marble is not alike in all countries.

Harmony is an obscure and difficult musical science, but most difficult to those who are not acquainted with the Greek language; because it is necessary to use many Greek words to which there are none corresponding in Latin.

Wind is a floating wave of air, whose undulation continually varies.

Care should be taken that all buildings are well lighted: in those of the country this point is easily accomplished, because the wall of a neighbour is not likely to interfere with the light.

I am moreover inclined to be concise when I reflect on the constant occupation of the citizens in public and private affairs, so that in their few leisure moments they may read and understand as much as possible.

Nothing requires the architect's care more than the due proportions of buildings.

Proportion is that agreeable harmony between the several parts of a building, which is the result of a just and regular agreement of them with each other; the height to the width, this to the length, and each of these to the whole.

Beauty is produced by the pleasing appearance and good taste of the whole, and by the dimensions of all the parts being duly proportioned to each other.

From the exterior face of the wall towers must be projected, from which an approaching enemy may be annoyed by weapons, from the embrasures of those towers, right and left.

Since, therefore, individuals as well as the public are so indebted to these writers for the benefits they enjoy, I think them not only entitled to the honour of palms and crowns, but even to be numbered among the gods.

I, therefore, O Caesar, do not publish this work, merely prefixing my name to a treatise which of right belongs to others, nor think of acquiring reputation by finding fault with the works of any one.

Economy consists in a due and proper application of the means afforded according to the ability of the employer and the situation chosen; care being taken that the expenditure is prudently conducted.

When it passes towards the east, the sun begins to have less effect upon it, and a thin line on the edge of its bright side emits its splendour towards the earth.

The lanes and streets of the city being set out, the choice of sites for the convenience and use of the state remains to be decided on; for sacred edifices, for the forum, and for other public buildings.

The thickness of the walls should be sufficient for two armed men to pass each other with ease.

The temple of Ceres should be in a solitary spot out of the city, to which the public are not necessarily led but for the purpose of sacrificing to her.

Bodies which contain a greater proportion of water than is necessary to balance the other elements, are speedily corrupted, and lose their virtues and properties.

Architecture is a science arising out of many other sciences, and adorned with much and varied learning; by the help of which a judgment is formed of those works which are the result of other arts.

Wherefore the mere practical architect is not able to assign sufficient reasons for the forms he adopts; and the theoretic architect also fails, grasping the shadow instead of the substance.

An easy approach to the walls must be provided against: indeed they should be surrounded by uneven ground, and the roads leading to the gates should be winding and turn to the left from the gates.

Consistency is found in that work whose whole and detail are suitable to the occasion. It arises from circumstance custom and nature.

Wind is a floating wave of air whose undulation continually varies.

Every American deserves to live in freedom, to have his or her privacy respected and a chance to go as far as their ability and effort will take them - regardless of race, gender, ethnicity or economic circumstances.

Never underestimate a child's ability to get into more trouble.

We have developed this unbelievable ability to deny. We have to. If we didn't, we'd go crazy.

To know how to hide one's ability is great skill.

It is the ability to take a joke, not make one, that proves you have a sense of humor.

The ability to deal with people is as purchasable a commodity as sugar or coffee and I will pay more for that ability than for any other under the sun.

Handcuffing the ability of states and localities to develop clean fuels in the cheapest possible way, using local resources, is not sound or sensible policy.

I realised from a very early age that God gave me a gift, and that gift was to run, and I wanted to use it to the best of my ability.

My vocal ability is very limited, but I'm fortunate in that I can write the songs around my vocal limitations.

The key to Operations at Wal-Mart is their ability to maintain the highest standards while at the same time getting things done with lockstep execution.

The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.

The Stones are a different kind of group. I realized that when I joined them. It's not really so much their musical ability, it's just they have a certain kind of style and attitude which is unique.

I liked his ability to deal with a lot of the negativity that surrounded him. Even though he was in a world that he didn't want to be in, he still saw the bigger picture.

We have the most flexible and adaptive economy. Making sure we sustain the ability of the American economy to perform well is really the priority of economic policy.

The system that enables the most people to earn the most success is free enterprise, by matching up people's skills, interests, and abilities. In contrast, redistribution simply spreads money around. Even worse, it attenuates the ability to earn success by perverting economic incentives.

Excellence is the unlimited ability to improve the quality of what you have to offer.

War should be the only study of a prince. He should consider peace only as a breathing-time, which gives him leisure to contrive, and furnishes as ability to execute, military plans.

Get that right, then- if you get the quality right, then the marketability or whatever; your ability to sell videos or your ability to earn money or whatever, will follow naturally. But try to be creatively lead rather than market lead. And that's important to me.