I only desire sincere relations with the worthiest of my acquaintance, that they may give me an opportunity once in a year to speak the truth.

Suit the action to the word, the word to the action.

The primary condition for being sincere is the same as for being humble: not to boast of it, and probably not even to be aware of it.

A man must not always tell all, for that were folly: but what a man says should be what he thinks.

It's never what you say, but how You make it sound sincere.

Sincerity is an opening of the heart; we find it in very few persons; and that which we see ordinarily is only a cunning deceit to attract the confidence of others.

Civility is not a sign of weakness, and sincerity is always subject to proof.

The young do not demand omniscience. They know it is unattainable. They do demand sincerity.

However much we may distrust men's sincerity, we always believe they speak to us more sincerely than to others.

A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.

Sincerity that thinks it is the sole possessor of the truth is a deadlier sin than hypocrisy, which knows better.

What is uttered from the heart alone Will win the hearts of others to your own.

Be as you would seem to be.

Sincerity is the highest compliment you can pay.

Nature forever puts a premium on reality. What is done for effect is seen to be done for effect; what is done for love is felt to be done for love. A man inspires affection and honor because he was not lying in wait for these.

A friend is a person with whom I may be sincere. Before him I may think aloud.

I should say sincerity, a deep, great, genuine sincerity, is the first characteristic of all men in any way heroic.

Men are always sincere. They change sincerities, that's all.

No one means all he says, and yet very few say all they mean.

The spontaneity of slaps is sincerity, whereas the ceremonial of caresses is largely convention.