Tilting at windmills hurts you more than the windmills.

Never crowd youngsters about their private affairs - sex especially.

There comes a time in the life of every human when he or she must decide to risk ‘his life, his fortune and his sacred honor’ on an outcome dubious. Those who fail the challenge are merely overgrown children, can never be anything else.

Spacemen - men who work in space, pilots and jetmen and astrogators and such - are men who like a few million miles of elbow room.

Death is the lot of us all, and the only way that the human race has ever conquered death is by treating it with contempt. By living every golden minute as if one had all Eternity.

Age is not an accomplishment, and youth is not a sin.

...I am opposed to all attempts to license or restrict the arming of individuals... I consider such laws a violation of civil liberty, subversive of democratic political institutions, and self-defeating in their purpose.