Man is condemned to be free.

The only limit to our realization of tomorrow will be our doubts of today.

Love is the supreme positive emotion, the one that encompasses all others. It is the feeling of positive resonance that you experience when you connect deeply with another person.

The ultimate situations - death, chance, guilt, and the uncertainty of the world - confront man with the reality of his existence.

释义：眼睛随便乱看就会使你惑乱，耳朵随意乱听就会使你迷惑，嘴巴随意胡说就会给你带来乱子。警示人们在日常生活中要保持谨言慎行的态度，以免招来祸患。