Knowledge becomes evil if the aim be not virtuous.
An investment in knowledge pays the best interest.
Don't worry that children never listen to you; worry that they are always watching you.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
There is nothing more awful, insulting, and depressing than banality.
In mathematics you don't understand things. You just get used to them.
If you want the present to be different from the past, study the past.
No man's knowledge here can go beyond his experience.
There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.
Necessity is the mother of invention.
Intelligence plus character-that is the goal of true education.
Many much-learned men have no intelligence.
The first principle is that you must not fool yourself and you are the easiest person to fool.
Investigate, educate and organize.
It is beyond a doubt that all our knowledge begins with experience.
Learning never exhausts the mind.
The only true wisdom is in knowing you know nothing.
I am a part of everything that I have read.
All stable processes we shall predict. All unstable processes we shall control.
Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.
What sculpture is to a block of marble, education is to a human soul.