Some men are just as sure of the truth of their opinions as are others of what they know.
A true disciple shows his appreciation by reaching further than his teacher.
It is through wonder that men now begin and originally began to philosophize; wondering in the first place at obvious perplexities, and then by gradual progression raising questions about the greater matters too.
Fortune favours the bold.
This much then, is clear: in all our conduct it is the mean that is to be commended.
Cruel is the strife of brothers.