The speed of forgetting depends on a number of factors such as the difficulty of the learned material (e.g. how meaningful it is), its representation and physiological factors such as stress and sleep. Furthermore higher original learning also reduces forgetting. The rate differs little between individuals.

Perhaps the most important discoveries are those which relate to the appropriate distribution of the periods of study...Acts of revision should be spaced in gradually increasing intervals, roughly intervals of one day, two days, four days, eight days, and so on.

The forgetting curve hypothesizes the decline of memory retention in time. This curve shows how information is lost over time when there is no attempt to retain it.

From 1880 to 1885, Hermann Ebbinghaus ran a study about the memorisation of nonsense syllables, such as "WID" and "ZOF" by repeatedly testing himself after various time periods and recording the results. He plotted these results on a graph creating what is now known as the "forgetting curve".

Murre and Dros present a successful replication of Ebbinghaus’ classic forgetting curve from 1880 based on the method of savings. The forgetting curve has indeed been replicated and that it is not completely smooth but most probably shows a jump upwards starting at the 24 hour data point.

Spitzer tested 1939 the effects of a type of spaced repetition with over 3600 students who were learning science facts and showed that spaced repetition was effective.

Spaced practice is a feasible and cost-effective way to improve the effectiveness and efficiency of learning, and has tremendous potential to improve educational outcomes.

Memory formation becomes more effective with longer inter-stimulus intervals between training sessions because of decreasing temporal overlap between successive, short-lived learning traces.

The hardest part about walking away from someone is when you realize that no matter how slow you go, that someone will never run after you.

I know who I am by now. And I am my own brand.

When I was 12 and started to take singing lessons from a woman, she told me that I would probably spend the rest of my life taking care of my voice.

I'd like to see the giant squid. Nobody has ever seen one. I could tell you people who have spent thousands and thousands of pounds trying to see giant squid. I mean, we know they exist because we have seen dead ones. But I have never seen a living one. Nor has anybody else.

I'm not a xenophobe - I think immigration is a good thing for most countries - but they transmute the foibles of their native tongues into English in a way that's difficult to figure out.

It is a process of discovery. It's being quiet enough and undisturbed enough for a period of time so that the songs can begin to sort of peek out, and you begin to have emotional experiences in a musical way.

John Kerry wants to be the hero in his own drama. He likes King Arthur and the Round Table. He likes the young swashbuckling Churchill, and he loved the early antics of Theodore Roosevelt.

Serving in the United States Senate has been the greatest privilege of my life.

I live with three boys, and I can't tell you how hard it is to get your hands on toilet paper. They steal it.

The competition has improved tremendously. In 2003, I could teach a guy how to play poker in an hour and he could win some money. Today, it would take days. The game has gotten so much tougher. So I will spend my time with my family and play when I can.

AIDS is a judgment we have brought upon ourselves.

Stories about vicars are always being told because they're at the heart of our society. Vicars touch all parts of the community and see life in all its extremity.

Well, they didn't lack for topics after Hiroshima. Why should 9/11 slow them down? I know it got a lot of press, but it's just a few large buildings and aircraft, it's not like D-Day and the Seige of Berlin.

Dear mind please stop thinking so much at night I need to sleep.

I like the U.S. and feel gratitude towards it.

I feel like my kind of music is a big pot of different spices. It's a soup with all kinds of ingredients in it.

For myself, I haven't been content to carry on producing books that merely strain against the conventions - as I've grown older, and realised that there aren't that many books left for me to write, so I've become determined that they should be the fictive equivalent of ripping the damn corset off altogether and chucking it on the fire.

The genocide in Rwanda was a collective act. What made it possible what made that final political crime possible was the absence the erasure of seeing the other. Of knowing of feeling of being with the other. And when thats removed then politics can become genocidal.

George H.W. Bush assembled a 'coalition of the willing.' We need to do that again.

I suppose that if I could only do one thing, a solid card effect would be pretty high on the list. That's the root of it all, sleight-of-hand. It's certainly the thing I feel most comfortable with.

Of course, we didn't survive to play all the way through the '90s, so I can say that - as I said, everybody in the band was aware of this, and we trying to figure out ways to make it different.

Through my education, I didn't just develop skills, I didn't just develop the ability to learn, but I developed confidence.

Protecting our land, our air and our water is a very important thing that we can only do together.

I'm small, but I'm neither compliant nor agreeable.