Man is not only a contributary creature, but a total creature; he does not only make one, but he is all; he is not a piece of the world, but the world itself; and next to the glory of God, the reason why there is a world.

Biologically, man is still the great amateur of the animal kingdom; he is unique in his lack of anatomical and physiological specialization.

Each human being is unique, unprecedented, unrepeatable.

It were no slight attainment could we merely fulfil what the nature of man implies.

Man is Nature's sole mistake!

Man is a simple being. And however rich, varied, and unfathomable he may be, the cycle of his situations is soon run through.

Mankind are earthen jugs with spirits in them.

Among all creatures that breathe on earth and crawl on it there is not anywhere a thing more dismal than man is.

Man as we know him is a poor creature; but he is half-way between an ape and a god, and he is travelling in the right direction.

The Family of Man is more than three billion strong. It lives in more than one hundred nations. Most of its members are not white. Most of them are not Christians. Most of them know nothing about free enterprise, or due process of law or the Australian ballot.