Hatred of humanity and love of animals make a very bad combination.

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.

In nature we find not only that which is expedient, but also everything which is not so inexpedient as to endanger the existence of the species.

Hatred of humanity and love of animals make a very bad combination.

The scientist knows very well that he is approaching ultimate truth only in an asymptotic curve and is barred from ever reaching it; but at the same time he is proudly aware of being indeed able to determine whether a statement is a nearer or a less near approach to the truth.

The fidelity of a dog is a precious gift.

Most people have forgotten how to live with living creatures, with living systems and that, in turn, is the reason why man, whenever he comes into contact with nature, threatens to kill the natural system in which and from which he live.