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

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.

The knowledge of all things is possible

I like poems you can tack all over with a hammer and there are no hollow places.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

My weapon is literature

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.

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

Many much-learned men have no intelligence.

The schools ain't what they used to be and never was.

The only good is knowledge and the only evil is ignorance.

Better know nothing than half-know many things.

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

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

Reading is to the mind what exercise is to the body.

I cannot teach anybody anything. I can only make them think

It took us three years to build the NeXT computer. If we'd given customers what they said they wanted, we'd have built a computer they'd have been happy with a year after we spoke to them - not something they'd want now.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

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

One test of the correctness of educational procedure is the happiness of the child.