Congress shall make no law abridging the freedom of production and trade.
The evil of the world is made possible by nothing but the sanction you give it.
If any part of your uncertainty, is a conflict between your heart and your mind - follow your mind.
Errors of knowledge are not breaches of morality; no proper moral code can demand infallibility or omniscience.
If you want to feel good, be rational.
The cult of moral grayness is a revolt against moral values.