The sole cause of man's unhappiness is that he does not know how to stay quietly in his room

If you want people to think well of you, do not speak well of yourself

We are not satisfied with real life; we want to live some imaginary life in the eyes of other people and to seem different from what we actually are

When I consider the short duration of my life, swallowed up in the eternity before and after, the little space I fill, and even can see, engulfed in the infinite immensity of space of which I am ignorant, and which knows me not, I am frightened, and am astonished at being here rather than there, why now rather than then?

If it is an extraordinary blindness to live without investigating what we are, it is a terrible one to live an evil life, while believing in God

We do not content ourselves with the life we have in ourselves and in our own being; we desire to live an imaginary life in the mind of others, and for this purpose we endeavour to shine. We labour unceasingly to adorn and preserve this imaginary existence, and neglect the real. And if we possess calmness, or generosity, or truthfulness, we are eager to make it known, so as to attach these virtues to that imaginary existence. We would rather separate them from ourselves to join them to it; and we would willingly be cowards in order to acquire the reputation of being brave. A great proof of the nothingness of our being, not to be satisfied with the one without the other, and to renounce the one for the other! For he would be infamous who would not die to preserve his honour.