It is vain and useless to survey everything that goes on in the world if our study does not help us mend our ways.

Self-love makes us deceive ourselves in almost all matters, to censure others, and to blame them for the same faults that we do not correct in ourselves; we do this either because we are unaware of the evil that exists within us, or because we always see our own evil disguised as a good.

There is nothing that does not have something perfect in it; and it is the happiness of good taste to be able to find this perfection in all things. But there is a natural malignity that often discovers a vice in the midst of several virtues, in order to reveal and proclaim the discovery to all the world - a quality that is more the mark of a naturally evil temperament than a superior sense of discrimination. And it is truly an evil lot, to pass one's life always feeding off the imperfections of others.

Self-love is even deceived by self-love, because by looking out for our own interests and disregarding those of other people, we lose the advantage that comes with the exchange of favors.

There are people so blind and self-absorbed in all matters that they always believe that, whatever they desire or think, they can impose their will on other people. Whatever bad reason they use to persuade others, these self-centered people are so caught up in the process that it seems to them all they have to do is to speak their wishes in a lofty and commanding tone of voice in order to convince everybody.

It is such a great fault to talk too much that, in business and conversation, if what is good is also brief, it is doubly good, and one gains by brevity what one often loses by an excess of words.

We prefer people who are trying to imitate us more than those who are trying to equal us. This is because imitation is a sign of esteem, but the desire to equal others is a sign of envy.