All pain is either severe or slight, if slight, it is easily endured; if severe, it will without doubt be brief.

The nobler a man, the harder it is for him to suspect inferiority in others.

But if you should take the bond of goodwill out of the universe no house or city could stand, nor would even the tillage of the fields abide. If that statement is not clear, then you may understand how great is the power of friendship and of concord from a consideration of the results of enmity and disagreement. For what house is so strong, or what state so enduring that it cannot be utterly overthrown by animosities and division?

The good of the people is the greatest law.

Art is born of the observation and investigation of nature.

To study philosophy is nothing but to prepare one’s self to die.

An intemperate, disorderly youth will bring to old age, a feeble and worn-out body.