In the works of Nature, purpose, not accident, is the main thing.
He who confers a benefit on anyone loves him better than he is beloved.
A courageous person is one who faces fearful things as he ought and as reason directs for the sake of what is noble.
It is not sufficient to know what one ought to say, but one must also know how to say it.
Some men are just as sure of the truth of their opinions as are others of what they know.
The true nature of a thing is the highest it can become.