I have found the missing link between the higher ape and civilized man; it is we.

Scientific truth is universal, because it is only discovered by the human brain and not made by it, as art is.

One of the most dangerously vicious circles menacing the continued existence of all mankind arises through that grim striving for the highest possible position within the ranked order, in other words, the reckless pursuit of power which combines with an insatiable greed of neurotic proportions that the results of acquired power confer.

Natural selection does not give any preference at all to anything that, in the long run, could be advantageous for the species but blindly rewards everything that, momentarily, affords greater procreative success.

The fidelity of a dog is a precious gift demanding no less binding moral responsibilities than the friendship of a human being.

We had better dispense with the personification of evil, because it leads, all too easily, to the most dangerous kind of war: religious war.

The human mind, in taking us down the path of technocracy, has become the adversary of life itself and collaterally the adversary of the human soul.