To solve a problem it is necessary to think. It is necessary to think even to decide what facts to collect.

It must be remembered that the purpose of education is not to fill the minds of students with facts…it is to teach them to think.

It must be remembered that the purpose of education is not to fill the minds of students with facts…it is to teach them to think.

For every fact there is an infinity of hypotheses.

It is not so important to be serious as it is to be serious about the important things. The monkey wears an expression of seriousness which would do credit to any college student, but the monkey is serious because he itches.

The college graduate is presented with a sheepskin to cover his intellectual nakedness.