“Life can be explained for the most part in terms of natural laws. The causes of suffering, pain then become plainer. Man should strive to enrich as much as possible life. To make himself an important tool in the general progress of mankind.”

Part 5.
Paracelsus (1835)

Source: Man for Himself (1947), Ch. 4 "Problems of Humanistic Ethics"

Source: 1850s, An Investigation of the Laws of Thought (1854), p. 4; Ch. 1. Nature And Design Of This Work
Context: The general laws of Nature are not, for the most part, immediate objects of perception. They are either inductive inferences from a large body of facts, the common truth in which they express, or, in their origin at least, physical hypotheses of a causal nature serving to explain phenomena with undeviating precision, and to enable us to predict new combinations of them. They are in all cases, and in the strictest sense of the term, probable conclusions, approaching, indeed, ever and ever nearer to certainty, as they receive more and more of the confirmation of experience. But of the character of probability, in the strict and proper sense of that term, they are never wholly divested. On the other hand, the knowledge of the laws of the mind does not require as its basis any extensive collection of observations. The general truth is seen in the particular instance, and it is not confirmed by the repetition of instances.

Source: Pandemonium Magazine, Vol#29 - April 1995: "Layne Staley Unchained"

Letter to the editor [untitled], The New York Times (1968-03-24)

Epistulae Morales ad Lucilium (Moral Letters to Lucilius), Letter LXXVIII: On the Healing Power of the Mind

http://www.billevanswebpages.com/billquotes.html.

1900s, The Moral Equivalent of War (1906)
Context: There is nothing to make one indignant in the mere fact that life is hard, that men should toil and suffer pain. The planetary conditions once for all are such, and we can stand it. But that so many men, by mere accidents of birth and opportunity, should have a life of nothing else but toil and pain and hardness and inferiority imposed upon them, should have no vacation, while others natively no more deserving never get any taste of this campaigning life at all, — this is capable of arousing indignation in reflective minds. It may end by seeming shameful to all of us that some of us have nothing but campaigning, and others nothing but unmanly ease. If now — and this is my idea — there were, instead of military conscription, a conscription of the whole youthful population to form for a certain number of years a part of the army enlisted against Nature, the injustice would tend to be evened out, and numerous other goods to the commonwealth would remain blind as the luxurious classes now are blind, to man's relations to the globe he lives on, and to the permanently sour and hard foundations of his higher life.

1960's