Evil being the root of mystery, pain is the root of knowledge.
Industrialize or perish.
The reading of all good books is like conversation with the finest men of past centuries.
Real knowledge is to know the extent of one's ignorance.
The great difficulty in education is to get experience out of ideas.
The secret of life is not enjoyment but education through experience.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
Patience is a virtue, and I'm learning patience. It's a tough lesson.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
Knowing is not enough; we must apply. Willing is not enough; we must do.
Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.
A cynic is a man who knows the price of everything, and the value of nothing.
Reading is to the mind what exercise is to the body.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
To educate a person in the mind but not in morals is to educate a menace to society.
Science is what we have learned about how to keep from fooling ourselves.
Men are born ignorant, not stupid. They are made stupid by education.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
No power and no treasure can outweigh the extension of our knowledge.