If you chase perfection, you often catch excellence.

Striving for excellence motivates you; striving for perfection is demoralizing

Perfection has to do with the end product, but excellence has to do with the process.

Perfection is not attainable, but if we chase perfection we can catch excellence.

The intellect of man is forced to choose perfection of the life, or of the work, and if it take the second must refuse a heavenly mansion, raging in the dark.

Perfection has one grave defect: it is apt to be dull.