There is nothing abstract about pain. It is specific, it is real, and, when it is intense, it is world destroying.

My life was lucky so that I met, I loved (and disappointed) only outstanding people.

In order to understand the world, one has to turn away from it on occasion; in order to serve others better, one has to hold them at a distance for a time. But where can one find the solitude necessary to vigor, the deep breath in which the mind collects itself and courage gauges its strength? There remain big cities.

And it was like knocking four quick times on the door of unhappiness.

Liberty is dangerous, as hard to get along with as it is exciting.

My dear, In the midst of hate, I found there was, within me, an invincible love. In the midst of tears, I found there was, within me, an invincible smile. In the midst of chaos, I found there was, within me, an invincible calm. I realized, through it all, that… In the midst of winter, I found there was, within me, an invincible summer. And that makes me happy. For it says that no matter how hard the world pushes against me, within me, there’s something stronger – something better, pushing right back. Truly yours, Albert Camus

he's incapable of suffering for a long time, or being happy for a long time. Which means that he's incapable of anything really worth while.