We should be eternally vigilant against attempts to check the expression of opinions that we loathe.

The mode by which the inevitable comes to pass is effort.

You make me chuckle when you say that you are no longer young, that you have turned twenty-four. A man is or may be young to after sixty, and not old before eighty.

Eloquence may set fire to reason.

The most stringent protection of free speech would not protect a man in falsely shouting fire in a theater and causing a panic.

Many ideas grow better when transplanted into another mind than in the one where they sprung up.

Men, like peaches and pears, grow sweet a little while before they begin to decay.