The books that the world calls immoral are books that show the world its own shame.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

I think that kids have a greater capacity for processing things than we give them credit for.

All stable processes we shall predict. All unstable processes we shall control.

Free the child's potential, and you will transform him into the world.

Imagination is more important than knowledge.

Study without desire spoils the memory, and it retains nothing that it takes in.

Never help a child with a task at which he feels he can succeed.

No man's knowledge here can go beyond his experience.

Civilization is a race between disaster and education.

If I have seen further it is by standing on the shoulders of Giants.

Science is not only a disciple of reason but, also, one of romance and passion.

It is possible to fly without motors, but not without knowledge and skill.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

A witty saying proves nothing.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

Knowledge becomes evil if the aim be not virtuous.

The only true wisdom is in knowing you know nothing.

Those who fail to learn the lessons of history are doomed to repeat them.

I am so clever that sometimes I don't understand a single word of what I am saying.