Human behavior flows from three main sources: desire, emotion, and knowledge
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
Many much-learned men have no intelligence.
A child miseducated is a child lost.
If you can't explain it simply, you don't understand it well enough.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
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.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
I am indebted to my father for living, but to my teacher for living well.
When you know better you do better.
The most savage controversies are those about matters as to which there is no good evidence either way.
When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.
It is better to know how to learn than to know.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
We could never learn to be brave and patient, if there were only joy in the world
Know what you are talking about.
Books are for people who wish they were somewhere else.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
It is possible to fly without motors, but not without knowledge and skill.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
Reading is to the mind what exercise is to the body.