Just because I don't care doesn't mean I don't understand.
Real knowledge is to know the extent of one's ignorance.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
Imagination is more important than knowledge.
Seek knowledge from the cradle to the grave.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
Dare to think for yourself.
A cynic is a man who knows the price of everything, and the value of nothing.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Civilization is a race between disaster and education.
If I have seen further it is by standing on the shoulders of Giants.
It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.
A child educated only at school is an uneducated child.
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
Most people have never learned that one of the main aims in life is to enjoy it.
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.
Study without desire spoils the memory, and it retains nothing that it takes in.
I am so clever that sometimes I don't understand a single word of what I am saying.
I learned very early the difference between knowing the name of something and knowing something.
Knowledge becomes evil if the aim be not virtuous.