A man seldom finds people unthankful, as long as he remains in a condition of benefiting them further.

We are almost always bored by just those whom we must not find boring.

There are reproaches which praise, and praises which defame.

Thinkers think and doers do. But until the thinkers do and the doers think, progress will be just another word in the already overburdened vocabulary by sense.

We often boast that we are never bored; but yet we are so conceited that we do not perceive how often we bore others.

We would rather speak ill of ourselves than not talk about ourselves at all.

The intention of cheating no one lays us open to being cheated ourselves.