Love and friendship exclude each other.

• They that have lived a single day have lived an age.
• All men's misfortunes spring from their hatred of being alone.
• All of our unhappiness comes from our inability to be alone.
• We perceive when love begins and when it declines by our embarrassment when alone together.
• At the beginning and at the end of love, the two lovers are embarrassed to find themselves alone.
• It's motive alone which gives character to the actions of men.
• We can recognize the dawn and the decline of love by the uneasiness we feel when alone together.
• Man has but three events in his life: to be born, to live, and to die. He is not conscious of his birth, he suffers at his death and he forgets to live.
• If some persons died, and others did not die, death would be a terrible affliction.
• The passion of hatred is so long lived and so obstinate a malady that the surest sign of death in a sick person is their desire for reconciliation.