Let us first understand the facts and then we may seek the cause.

The activity of God, which is transcendent in blessedness, is the activity of contemplation; and therefore among human activities that which is most akin to the divine activity of contemplation will be the greatest source of happiness.

A city is composed of different kinds of men; similar people cannot bring a city into existence.

A friend of everyone is a friend of no one

Happiness is the meaning and the purpose of life, the whole aim and end of human existence.

We can't learn without pain.

Anybody can get hit over the head.