The first time a student realizes that a little learning is a dangerous thing is when he brings home a poor report card.
Shut the door not that it lets in the cold but that it lets out the coziness.
Ignorance is not, not knowing something. It is knowing what isn't so.
Everybody's private motto: It's better to be popular than right.
Is the human race a joke? Was it devised and patched together in a dull time when there was nothing important to do?
We can secure other people's approval, if we do right and try hard; but our own is worth a hundred of it, and no way has been found out of securing that.