All the variety, all the charm, all the beauty of life is made up of light and shadow.

In childhood be modest, in youth temperate, in adulthood just, and in old age prudent.

Life is an instinct for growth, for survival, for the accumulation of forces, for power.

Every philosophy is the philosophy of some stage of life.

It is true: we love life, not because we are used to living, but because we are used to loving.

A vocation is the backbone of life.