Good habits formed at youth make all the difference.

Pleasure in the job puts perfection in the work.

There is no great genius without some touch of madness.

My best friend is the man who in wishing me well wishes it for my sake.

The aim of the wise is not to secure pleasure, but to avoid pain.

The worst form of inequality is to try to make unequal things equal.

Those that know, do. Those that understand, teach.

A friend to all is a friend to none.

What it lies in our power to do, it lies in our power not to do.

Courage is the first of human qualities because it is the quality which guarantees the others.

Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

Man is a goal-seeking animal. His life only has meaning if he is reaching out and striving for his goals

The least initial deviation from the truth is multiplied later a thousandfold.

Nature does nothing uselessly.

Poverty is the parent of revolution and crime.

We give up leisure in order that we may have leisure, just as we go to war in order that we may have peace.

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

Happiness is an expression of the soul in considered actions.