The absence of temptation is the absence of virtue.

By seeking and blundering we learn.

We must not take the faults of our youth with us into old age, for age brings along its own defects.

The errors of the observer come from the qualities of the human mind.

Everyone holds his fortune in his own hands, like a sculptor the raw material he will fashion into a figure. But it's the same with that type of artistic activity as with all others: We are merely born with the capability to do it. The Skill to mold the material into what we want must be learned and attentively cultivated.

two souls, alas, are housed within my breast, and each will wrestle for the mastery there.

Colors are the deeds/ and sufferings of light.