The step between genius and insanity is very short.

Never memorize something that you can look up.

It's not that life has been easy, perfect or exactly as expected. I just choose to be happy and grateful no matter how it all turns out. If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.

It is little short of a miracle that modern methods of instruction have not already completely strangled the holy curiosity of inquiry.... I believe that one could even deprive a healthy beast of prey of its voraciousness if one could force it with a whip to eat continuously whether it were hungry or not.

We are all very ignorant. What happens is that not all ignore the same things.

Man would indeeded be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.

The human mind has first to construct forms, independently, before we can find them in things.