Happiness must ensue. It cannot be pursued

Love is the only way to grasp another human being in the innermost core of his personality

To draw an analogy: a man's suffering is similar to the behavior of a gas. If a certain quantity of gas is pumped into an empty chamber, it will fill the chamber completely and evenly, no matter how big the chamber. Thus suffering completely fills the human soul and conscious mind, no matter whether the suffering is great or little. Therefore the "size" of human suffering is absolutely relative.

For what then matters is to bear witness to the uniquely human potential at its best, which is to transform a personal tragedy into a triumph, to turn one’s predicament into a human achievement.

Happiness cannot be attained by wanting to be happy - it must come as the unintended consequence of working for a goal greater than oneself.

It is always important to have something yet to do in life.

Ultimately, we are not subject to the conditions that confront us; rather, these conditions are subject to our decision ... we must decide whether we will face up or give in, whether or not we will let ourselves be determined by the conditions.