Common sense (which, in truth, is very uncommon) is the best sense I know of: abide by it; it will counsel you best.

Whoever incites anger has a strong insurance against indifference.

Conscious virtue is the only solid foundation of all happiness; for riches, power, rank, or whatever, in the common acceptation ofthe word, is supposed to constitute happiness, will never quiet, much less cure, the inward pangs of guilt.

There will never be a better time to start quitting smoking than today

The only sure way of avoiding these evils [vanity and boasting] is never to speak of yourself at all. But when, historically, youare obliged to mention yourself, take care not to drop one single word that can directly or indirectly be construed as fishing for applause.

Keep carefully not of all scrapes and quarrels. They lower a character extremely; and are particularly dangerous in France, wherea man is dishonoured by not resenting an affront, and utterly ruined by resenting it.

An injury is much sooner forgotten than an insult.