“The inexperienced in wisdom and virtue, ever occupied with feasting and such, are carried downward, and there, as is fitting, they wander their whole life long, neither ever looking upward to the truth above them nor rising toward it, nor tasting pure and lasting pleasures. Like cattle, always looking downward with their heads bent toward the ground and the banquet tables, they feed, fatten, and fornicate. In order to increase their possessions they kick and butt with horns and hoofs of steel and kill each other, insatiable as they are.”
Plato, Republic IX: 586a-b
Plato, Republic
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Socrates 168
classical Greek Athenian philosopher -470–-399 BCRelated quotes

Source: https://theosophy.world/sites/default/files/ebooks/Annie%20Besant-In-The-Outer-Court.pdf In the Outer Court, 1895, p. 34
Book 4; Universal Love III
Mozi
Context: Now, as to universal love and mutual aid, they are beneficial and easy beyond a doubt. It seems to me that the only trouble is that there is no superior who encourages it. If there is a superior who encourages it, promoting it with rewards and commendations, threatening its reverse with punishments, I feel people will tend toward universal love and mutual aid like fire tending upward and water downwards — it will be unpreventable in the world.

"The Responsibility of the Poet".
What Are People For? (1990)
Context: Professional standards, the standards of ambition and selfishness, are always sliding downward toward expense, ostentation, and mediocrity. They tend always to narrow the ground of judgment. But amateur standards, the standards of love, are always straining upward toward the humble and the best. They enlarge the ground of judgment. The context of love is the world.

“It hither, thither, downward, upward, drives them.”
Canto V, line 43 (tr. Longfellow).
The Divine Comedy (c. 1308–1321), Inferno

Part I : Contemporary Issues in Science, Ch. 1 : "The Scientist as Rebel"
The Scientist As Rebel (2006)
Context: The progress of science requires the growth of understanding in both directions, downward from the whole to the parts and upward from the parts to the whole. A reductionist philosophy, arbitrarily proclaiming that the growth of understanding must go only in one direction, makes no scientific sense. Indeed, dogmatic philosophical beliefs of any kind have no place in science.

Yoga: The Hatha Yoga and the Raja Yoga http://books.google.co.in/books?id=2sDu6Xmkh2cC&printsec=frontcover, p. backcover