It is better to drink of deep grief than to taste shallow pleasures.
The insolence of the vulgar is in proportion to their ignorance. They treat everything with contempt which they do not understand.
He will never have true friends who is afraid of making enemies.
The most learned are often the most narrow minded.
[Science is] the desire to know causes.
Talent is the capacity of doing anything that depends on application and industry and it is a voluntary power, while genius is involuntary.