What is my life if I am no longer useful to others.

Rest not. Life is sweeping by; go and dare before you die. Something mighty and sublime, leave behind to conquer time.

He who moves not forward, goes backward.

Art is long, life short, judgment difficult, opportunity transient.

We look back on our life as a thing of broken pieces, because our mistakes and failures are always the first to strike us, and outweigh in our imagination what we have accomplished and attained.

Superstition is the poetry of life.