It is possible to fly without motors, but not without knowledge and skill.
If the facts don't fit the theory, change the facts.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
The books that the world calls immoral are books that show the world its own shame.
Books are for people who wish they were somewhere else.
I am so clever that sometimes I don't understand a single word of what I am saying.
Common sense is the collection of prejudices acquired by age eighteen.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
Don't worry that children never listen to you; worry that they are always watching you.
A child miseducated is a child lost.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
A witty saying proves nothing.
Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.
Learning never exhausts the mind.
I have no special talents. I am only passionately curious.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
If you want the present to be different from the past, study the past.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
Don't learn to do, but learn in doing.