Man has been reared by his errors: firstly, he saw himself always imperfect; secondly, he attributed to himself imaginary qualities; thirdly, he felt himself in a false position in relation to the animals and nature; fourthly, he always devised new tables of values, and accepted them for a time as eternal and unconditioned, so that at one time this, and at another time that human impulse or state stood first, and was ennobled in consequence. When one has deducted the effect of these four errors, one has also deducted humanity, humaneness, and "human dignity."