Any man is liable to err, only a fool persists in error.

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.

Men of different tastes have different pursuits.

Friendship makes prosperity more brilliant, and lightens adversity by dividing and sharing it.

What gift has providence bestowed on man that is so dear to him as his children?

In anger nothing right nor judicious can be done.

There is no mortal whom pain and disease do not reach.