To win over your bad self is the grandest and foremost of victories.
Arithmetic is a kind of knowledge in which the best natures should be trained, and which must not be given up.
Science is nothing but perception.
Neither do the ignorant love wisdom or desire to become wise; for this is the grievous thing about ignorance, that those who are neither good nor beautiful think they are good enough, and do not desire that which they do not think they are lacking.
Nothing more excellent or valuable than wine was every granted by the gods to man.
Astronomy compels the soul to look upwards and leads us from this world to another.