Madness comes from God, whereas sober sense is merely human.

The essence of knowledge is self-knowledge.

When you swear, swear seriously and solemnly, but at the same time with a smile, for a smile is the twin sister of seriousness.

Of all the things of a man's soul which he has within him, justice is the greatest good and injustice the greatest evil.

Rhythm and harmony enter most powerfully into the inner most part of the soul and lay forcible hands upon it, bearing grace with them, so making graceful him who is rightly trained.

The blame is his who chooses: God is blameless.

He who without the Muse's madness in his soul comes knocking at the door of poesy and thinks that art will make him anything fit to be called a poet, finds that the poetry which he indites in his sober senses is beaten hollow by the poetry of madmen.