A man may have intelligence enough to excel in a particular thing and lecture on it, and yet not have sense enough to know he ought to be silent on some other subject of which he has but a slight knowledge; if such an illustrious man ventures beyond the bounds of his capacity, he loses his way and talks like a fool.

A prince wants only the pleasure of private life to complete his happiness.

No road is to long for him who advances slowly and does not hurry and no attainment is beyond his reach who equips himself with patience to achieve it

He who excels in his art so as to carry it to the utmost height of perfection of which it is capable may be said in some measure to go beyond it: his transcendent productions admit of no appellations.

We all covet wealth, but not its perils.

There are three great events in our lives: birth, life and death. Of birth we have no conscience; with death, we suffer; and, concerning life, we forget to live it.

Languages are the keys of science.