To every action there is always an equal and opposite or contrary, reaction
The real solution lies in a world in which charity will have become unnecessary.
The knowledge of all things is possible
A thought is an idea in transit.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
Investigate, educate and organize.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
What we know is a drop, what we don't know is an ocean.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
Opinion is the medium between knowledge and ignorance.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
The progressive development of man is vitally dependent on invention.
Those who fail to learn the lessons of history are doomed to repeat them.
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.
Reading is to the mind what exercise is to the body.
Don't learn to do, but learn in doing.
Better know nothing than half-know many things.
If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
Imagination is more important than knowledge.
Knowledge becomes evil if the aim be not virtuous.