There is no authority who decides what is a good idea.
If there were no bad people, there would be no good lawyers.
Necessity is the mother of invention.
Learning never exhausts the mind.
The schools ain't what they used to be and never was.
Dare to think for yourself.
In mathematics you don't understand things. You just get used to them.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
Science is what we have learned about how to keep from fooling ourselves.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
My weapon is literature
What sculpture is to a block of marble, education is to a human soul.
The great difficulty in education is to get experience out of ideas.
Human behavior flows from three main sources: desire, emotion, and knowledge
A witty saying proves nothing.
It is what you read when you don't have to that determines what you will be when you can't help it.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
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.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
If I have seen further it is by standing on the shoulders of Giants.