What is now proved was once only imagined.
Knowledge becomes evil if the aim be not virtuous.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
I am a part of everything that I have read.
The deepest sin against the human mind is to believe things without evidence.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.
Most people have never learned that one of the main aims in life is to enjoy it.
I have no special talents. I am only passionately curious.
There is no authority who decides what is a good idea.
Necessity is the mother of invention.
If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
A child educated only at school is an uneducated child.
The reading of all good books is like conversation with the finest men of past centuries.
Many much-learned men have no intelligence.
Imagination is more important than knowledge.
Education is the kindling of a flame, not the filling of a vessel.
Investigate, educate and organize.
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.
Science is not only a disciple of reason but, also, one of romance and passion.
Dare to think for yourself.