Plato (~427-347)The Republic, Book V, Satz 473c-e
Arthur Schopenhauer (1788-1860)The dogmas change and our knowledge is delusive but nature does not err: nature's stride is sure and not hidden. Everything in nature is whole, and nature is whole in everything.
Anaximander (~610-545 v.Chr)The indefinite was the first principle and element of things that are. The things that are perish into the things out of which they come to be, for they pay the penalty and retribution to each other for their injustice in accordance with the ordering of time".
Friedrich Wilhelm Nietzsche (1844-1900)The world is deep, deeper than the day could comprehend.
Georg Wilhelm Friedrich Hegel (1770-1831)The closed universe has no strength to resist the courage of perception. It must reveal to perception its riches and its profundity for the pleasure of the spirit.
Thomas Morus (1478-1535)It is always the fear of future want that makes living beings greedy and rapacious. Only human beings have the additional motivation of haughtiness for which it is glorious to boast by flaunting with superfluous things.
Thomas Hobbes (1588-1679)~ The desire for riches, honour, dominance and power of every kind foments the human being to dispute, to hostility and to war. From this it follows that without a limiting power, the state of humanity would be a war of all men against all men.
Jean Paul Sartre (1905-1980)When we say that a human being is responsible for himself, we do not mean that a human being is responsible just for his personal individuality, rather that he is responsible for all mankind.
Demokrit (~460-370 v.Chr)In their prayers people beseech the gods for health. They do not realize that they have the power in their own hands.
Epikur (341-270 v.Chr)It is better to endure some suffering now in order to enjoy a greater pleasure later. And it is of advantage to forego some pleasure now in order to avoid suffering greater pains later.
Karl Popper (1902-1994)It appears that all our knowledge consts of provisional, tentative solutions and therefore principally includes the possibility that it will turn out to be erroneous and mutate into ignorance.
Adam Smith (1723-1790)A person is constantly in need of the help of others. And on the basis of their goodwill he would vainly expect this help. He is much more likely to obtain their help if he were to appeal to their egoism and is able to show them that it would be of use to them if they were to do that for him which he wants of them.