One thing which makes us find so few people who appear reasonable and agreeable in conversation is, that there is scarcely any one who does not think more of what he is about to say than of answering precisely what is said to him.

We often pay our debts not because it is only fair that we should, but to make future loans easier.

Unfaithfulness ought to extinguish love, and we should not be jealous when there is reason to be. Only those who give no grounds for jealousy are worthy of it.

Never give anyone the advice to buy or sell shares, because the most benevolent price of advice can turn out badly.

We always like those who admire us.

To know oneself is not necessarily to improve oneself

True bravery means doing alone that which one could do if all the world were by.