If God is, man is a slave; ...

If God is, man is a slave; now, man can and must be free; then, God does not exist. I defy anyone whomsoever to avoid this circle; now, therefore, let all choose.
If God is, man is a slave; now, man can and must be free; then, God does not exist. I defy anyone whomsoever to avoid this circle; now, therefore, let all choose.
 Mikhail Bakunin

More phrases

If a man watches three football games in a row, he should be declared legally dead.
The truth is not for all men, but only for those who seek it.
A man must be big enough to admit his mistakes, smart enough to profit from them, and strong enough to correct them.
Each man has his own vocation; his talent is his call. There is one direction in which all space is open to him.
The superior man is modest in his speech but exceeds in his actions.

Quotes from the same author

The idea of God implies the abdication of human reason and justice; it is the most decisive negation of human liberty and necessarily ends in the enslavement of mankind both in theory and practice.
 Mikhail Bakunin
Liberty is so great a magician, endowed with so marvelous a power of productivity, that under the inspiration of this spirit alone, North America was able within less than a century to equal, and even surpass, the civilization of Europe.
 Mikhail Bakunin
For ten centuries Christianity, armed with the omnipotence of the Church and State and opposed by no competition, was able to deprave, debase, and falsify the mind of Europe. It had no competitors, because outside the Church there was neither thinkers nor educated persons. It alone taught, it alone spoke and wrote, it alone taught.
 Mikhail Bakunin
A jealous lover of human liberty, deeming it the absolute condition of all that we admire and respect in humanity, I reverse the phrase of Voltaire, and say that, if God really existed, it would be necessary to abolish him.
 Mikhail Bakunin
If God really existed, it would be necessary to abolish Him.
 Mikhail Bakunin