Old age is rather like another country. You will enjoy it more if you have prepared yourself before you go.

A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.

Somehow people get the idea I think we should be given gumdrops whenever we do anything of value.

If the world is to save any part of its resources for the future, it must reduce not only consumption but the number of consumers.

To say that a man is sinful because he sins is to give an operational definition of sin. To say that he sins because he is sinful is to trace his behavior to a supposed inner trait. But whether or not a person engages in the kind of behavior called sinful depends upon circumstances which are not mentioned in either question. The sin assigned as an inner possession (the sin a person "knows") is to be found in a history of reinforcement.

An important fact about verbal behavior is that speaker and listener may reside within the same skin.

I will be dead in a few months. But it hasn't given me the slightest anxiety or worry. I always knew I was going to die.