Of all forms of mental activity, the most difficult to induce even in the minds of the young, who may be presumed not to have lost their flexibility, is the art of handling the same bundle of data as before, but placing them in a new system of relations with one another by giving them a different framework, all of which virtually means putting on a different kind of thinking-cap for the moment. It is easy to teach anybody a new fact...but it needs light from heaven above to enable a teacher to break the old framework in which the student is accustomed to seeing.

The thing represented had to pass through two distorting lenses: the artist's mind, and his medium of expression, before it emerged as a man-made dream - the two, of course, being intimately connected and interacting with each other.

The jester is brother to the sage.

The real achievement in discoveries... is seeing an analogy where no one saw one before... The essence of discovery is that unlikely marriage of cabbages and kings — of previously unrelated frames of reference or universes of discourse — whose union will solve the previously insoluble problem.

I have repeatedly stressed that the selfish impulses of man constitute a much less historic danger than his integrative tendencies. To put it in the simplest way: the individual who indulges in an excess of aggressive self-assertiveness incurs the penalties of society-he outlaws himself, he contracts out of the hierarchy. The true believer, on the other hand, becomes more closely knit into it; he enters the womb of his church, or party, or whatever the social holon to which he surrenders his identity.

Somebody once asked Niels Bohr why he had a horseshoe hanging above the front door of his house. Surely you, a world famous physicist, can't really believe that hanging a horseshoe above your door brings you luck? Of course not, Bohr replied, but I have been reliably informed that it will bring me luck whether I believe in it or not.

Learn from the mistakes of others. You can't live long enough to make them all yourself. Boredom sets into boring minds. The more original a discovery, the more obvious it seems afterwards.