We have to continually be jumping off cliffs and developing our wings on the way down.

We too often bind ourselves by authorities rather than by the truth.

Liberty is not less a blessing, because oppression has so long darkened the mind that it can not appreciate it.

Man is not by nature a tyrant, but becomes a tyrant by power conferred on him.

The legal theory is, that marriage makes the husband and wife one person, and that person is the husband.

Truth for authority, not authority for truth.

Any great change must expect opposition, because it shakes the very foundation of privilege.

The arts are not a way to make a living. They are a very human way of making life more bearable.

Future generations will look back on TV as the lead in the water pipes that slowly drove the Romans mad.

There is a tragic flaw in our precious constitution, and I don't know what can be done to fix it. This is it: Only nut cases want to be president.

Nietzsche had a little one-liner on how to choose a wife. He said, ''Are you willing to have a conversation with this woman for the next forty years?'' That's how to pick a wife.

Smoking is the only honorable form of suicide.

If your brains were dynamite there wouldn't be enough to blow your hat off.

Live by the harmless untruths that make you brave and kind and healthy and happy.

And I urge you to please notice when you are happy, and exclaim or murmur or think at some point, 'If this isn't nice, I don't know what is.

Do not let the bitterness steal your sweetness.

Hate, in the long run, is about as nourishing as cyanide.

Well here you are, there it is, THIS is what it's all about.

Science is magic that works.