Who said “Virtue is harmony.”?

“Virtue survives the grave.”

“I used to be snow white, but I drifted.”

“Great necessities call out great virtues.”

“Virtue by premeditation isn't worth much.”

“All art is the struggle to be, in a particular sort of way, virtuous.”

“Rest satisfied with doing well, and leave others to talk of you as they will.”

“Strength of mind rests in sobriety; for this keeps your reason unclouded by passion.”

“Above the cloud with its shadow is the star with its light. Above all things reverence thyself.”

“Concern should drive us into action and not into a depression. No man is free who cannot control himself.”

“Friends are as companions on a journey, who ought to aid each other to persevere in the road to a happier life.”

“If there be light, then there is darkness; if cold, heat; if height, depth; if solid, fluid; if hard, soft; if rough, smooth; if calm, tempest; if prosperity, adversity; if life, death.”