Knowledge becomes evil if the aim be not virtuous.
It is through geometry that one purifies the eye of the soul.
There is yet something remaining for the dead, and some far better thing for the good than for the evil.
The cause of all sins in every case lies in the person's excessive love of self.
What a poor appearance the tales of poets make when stripped of the colours which music puts upon them, and recited in simple prose.
I fear this is not the right exchange to attain virtue, to exchange pleasures for pleasures, pains for pains and fears for fears, the greater for the less like coins, but that the only valid currency for which all these things should be exchanged is wisdom.