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".

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.

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.

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.

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.

All of us in Quebec - and I mean all of us - have allowed language to become a preoccupation that works to the disadvantage of all of us - and I mean all of us.

Coffee must be treated gently and smoothed out. I hadn't realised it was so temperamental.

When the Christians, upon these occasions, received martyrdom, they were ornamented, and crowned with garlands of flowers; for which they, in heaven, received eternal crowns of glory.

One of the reasons people stop learning is that they become less and less willing to risk failure.

Its nice to be important but its more important to be nice

A writer's life suits me. It's fairly, well, other people might think it was actually rather dull, but that's fine because I feel that my imagination is enough to kind of keep me happy.

Trees and plants always look like the people they live with, somehow.

My tides were fluctuating, too - back and forth, back and forth - sometimes so fast they seemed to be spinning. They call this 'rapid cycling.' It's a marvel that a person can appear to be standing still when the mood tides are sloshing back and forth, sometimes sweeping in both directions at once. They call that a 'mixed state.'

Love is the triumph of imagination over intelligence.

A cowboy is a man with guts and a horse.

I may not like the material, but I'm still a trouper.

The yogi offers his labyrinthine human longings to a monotheistic bonfire dedicated to the unparalleled God. This is indeed the true yogic fire ceremony, in which all past and present desires are fuel consumed by love divine.

We must be loyal to the forum of our government.

I was a hyperactive kid, and it took awhile for me to find the right teacher. My master was a Shaolin kung fu teacher, but he also taught tai chi, Chinese medicine, brush painting - he was adept at all facets of Chinese culture.

I think that that multiplatform development is what's on the mind of most high-end PC developers now... this is really the first time in the industry's history that we've had console machines that can handle all that PC developers can deliver.

Even in the off season, people are streaming the show or buying the DVD sets, and new audience comes to 'Leverage' every year we've been doing it.

The family - that dear octopus from whose tentacles we never quite escape, nor, in our inmost hearts, ever quite wish to.

Joy always came after pain.

Prayer has mighty power to move mountains because the Holy Spirit is ready both to encourage our praying and to remove the mountains hindering us.

We're into Nicole Kidmans, rather than the young girl who just got married in a tracksuit.

And I will put enmity between you and the woman, and between your offspring and hers; he will crush your head, and you will strike his heel.

I was described as a dreamer, a fantasist, even as the village idiot. I didn't care. What I cared about was convincing people to allow me to go on with my work.

Without faith a man can do nothing; with it all things are possible.

I think protecting your family and giving to them is so important. It's the most important achievement.