The natural term of the affection of the human animal for its offspring is six years.

Reminiscences make one feel so deliciously aged and sad.

You see things; you say, 'Why?' But I dream things that never were; and I say 'Why not?

When people shake their heads because we are living in a restless age ask them how they would like to life in a stationary one and do without change.

We have no more right to consume happiness without producing it than to consume wealth without producing it.

Liberty means responsibility. That is why most men dread it.