In the realm of Nature there is nothing purposeless, trivial, or unnecessary

In nature there is nothing melancholy.

In nature there is nothing melancholy

It was not man who implanted in himself what is infinite and the love of what is immortal: those lofty instincts are not the offspring of his capricious will; their steadfast foundation is fixed in human nature, and they exist in spite of his efforts. He may cross and distort them – destroy them he cannot. The soul wants which must be satisfied; and whatever pains be taken to divert it from itself, it soon grows weary, restless, and disquieted amidst the enjoyments of sense.

Nature does nothing uselessly.

Nature’s laws know no reward, only punishment. The reward is only that you are in harmony with nature.

Nature does nothing in vain. Therefore, it is imperative for persons to act in accordance with their nature and develop their latent talents, in order to be content and complete.

It is very difficult to explain this feeling to anyone who is entirely without it, especially as there is no anthropomorphic conception of God corresponding to it. The individual feels the nothingness of human desires and aims and the sublimity and marvelous order which reveal themselves both in Nature and in the world of though. He looks upon individual existence as a sort of prison and wants to experience the universe as a single significant whole.

The Christian says, 'Creatures are not born with desires unless satisfaction for those desires exists. A baby feels hunger: well, there is such a thing as food. A duckling wants to swim: well, there is such a thing as water. Men feel sexual desire: well, there is such a thing as sex. If I find in myself a desire which no experience in this world can satisfy, the most probable explanation is that I was made for another world. If none of my earthly pleasures satisfy it, that does not prove that the universe is a fraud. Probably earthly pleasures were never meant to satisfy it, but only to arouse it, to suggest the real thing. If that is so, I must take care, on the one hand, never to despise, or to be unthankful for, these earthly blessings, and on the other, never to mistake them for the something else of which they are only a kind of copy, or echo, or mirage. I must keep alive in myself the desire for my true country, which I shall not find till after death; I must never let it get snowed under or turned aside; I must make it the main object of life to press on to that country and to help others to do the same.

The desire of life and health is implanted in man’s nature; — the love of liberty and enlargement is a sister-passion to it:

The essence of desire is to have no essential goal. Truly to desire, we must have recourse to people about us; we have to desire their desires.

It is of the nature of desire not to be satisfied, and most men live only for the gratification of it.

"Humankind is that creature who lost a part of its animal instinct in order to gain access to "desire," as it is called. Once their natural needs are satisfied, humans desire intensely, but they don't know exactly what they desire, for no instinct guides them. We do not each have our own desire, one really our own. The essence of desire is to have no essential goal. Truly to desire, we must have recourse to people about us; we have to borrow their desires."

It is a universal law – have no illusions – that every creature alive is attached to nothing so much as to its own self-interest.