If throughout your life you abstain from murder, theft, fornication, perjury, blasphemy, and disrespect toward your parents, church, and your king, you are conventionally held to deserve moral admiration even if you have never done a single kind, generous or useful action. This very inadequate notion of virtue is an outcome of taboo morality, and has done untold harm.

To save the world requires faith and courage: faith in reason, and courage to proclaim what reason shows to be true.

Science, by itself cannot, supply us with an ethic.

Diversity is essential to happiness and in Utopia there is hardly any. This is a defect in all planned social systems.

I am allowed to use plain English because everybody knows that I could use mathematical logic if I chose.

True happiness for human beings is possible only to those who develop their godlike potentialities to the utmost.

Morally, a philosopher who uses his professional competence for anything except a disinterested search for truth is guilty of a kind of treachery.