Freedom is a man's natural power of doing what he pleases, so far as he is not prevented by force or law.

The great theatre for virtue is conscience.

To know the laws is not to memorize their letter but to grasp their full force and meaning.

Exile is terrible to those who have, as it were, a circumscribed habitation; but not to those who look upon the whole globe but as one city.

There is in fact a true law namely right reason, which is in accordance with nature, applies to all men and is unchangeable and eternal. ... It will not lay down one rule at Rome and another at Athens, nor will it be one rule today and another tomorrow. But there will be one law eternal and unchangeable binding all times and upon all peoples.

Orators are most vehement when their cause is weak.

Every evil in the bud is easily crushed: as it grows older, it becomes stronger.