Isn't it really quite extraordinary to see that, since man took his first step, no one has asked himself why he walks, how he walks, if he has ever walked, if he could walk better, what he achieves in walking .. questions that are tied to all the philosophical, psychological, and political systems which preoccupy the world.
A great while ago the world begun,
With hey, ho, the wind and the rain;
But that's all one, our play is done,
And we'll strive to please you every day.
'Thou shalt not kill' does not apply to murder of one's own kind only, but to all living beings and this commandment was inscribed in the human breast long before it was proclaimed from Sinai.
People must have renounced, it seems to me, all natural intelligence to dare to advance that animals are but animated machines.... It appears to me, besides, that such people can never have observed with attention the character of animals, not to have distinguished among them the different voices of need, of suffering, of joy, of pain, of love, of anger, and of all their affections. It would be very strange that they should express so well what they could not feel.