Every activity performed in public can attain an excellence never matched in privacy; for excellence, by definition, the presence of others is always required.

It is in the very nature of things human that every act that has once made its appearance and has been recorded in the history of mankind stays with mankind as a potentiality long after its actuality has become a thing of the past.

Slavery's crime against humanity did not begin when one people defeated and enslaved its enemies (though of course this was bad enough), but when slavery became an institution in which some men were 'born' free and others slave, when it was forgotten that it was man who had deprived his fellow-men of freedom, and when the sanction for the crime was attributed to nature.

The Third World is not a reality but an ideology.

As witnesses not of our intentions but of our conduct, we can be true or false, and the hypocrite's crime is that he bears false witness against himself. What makes it so plausible to assume that hypocrisy is the vice of vices is that integrity can indeed exist under the cover of all other vices except this one. Only crime and the criminal, it is true, confront us with the perplexity of radical evil; but only the hypocrite is really rotten to the core.

Courage is indispensible because in politics not life but the world is at stake.

Factual truth is always related to other people: it concerns events and circumstances in which many are involved; it is established by witnesses and depends upon testimony; it exists only to the extent that it is spoken about, even if it occurs in the domain of privacy. It is political by nature.