A witty saying proves nothing.

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

Patience is a virtue, and I'm learning patience. It's a tough lesson.

What is now proved was once only imagined.

To educate a person in the mind but not in morals is to educate a menace to society.

The deepest sin against the human mind is to believe things without evidence.

The only true wisdom is in knowing you know nothing.

Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country

Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.

A little knowledge is a dangerous thing. So is a lot.

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

The secret of life is not enjoyment but education through experience.

Common sense is the collection of prejudices acquired by age eighteen.

Necessity is the mother of invention.

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

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

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.

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

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