If the facts don't fit the theory, change the facts.
A witty saying proves nothing.
To educate a person in the mind but not in morals is to educate a menace to society.
In mathematics you don't understand things. You just get used to them.
The real solution lies in a world in which charity will have become unnecessary.
The most savage controversies are those about matters as to which there is no good evidence either way.
A child educated only at school is an uneducated child.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
The task of a writer is not to solve the problem but to state the problem correctly.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
A cynic is a man who knows the price of everything, and the value of nothing.
The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.
Educate the children and it won't be necessary to punish the men.
The only good is knowledge and the only evil is ignorance.
Investigate, educate and organize.
I cannot live without books.
Reading is to the mind what exercise is to the body.
If you can't explain it simply, you don't understand it well enough.
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.
Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.
The knowledge of all things is possible