“An aphorism can contain only as much wisdom as overstatement will permit.”

"Where Epics Fail: Aphorisms on Art, Morality & Spirit" (2018)

Source: Striking Thoughts (2000), p. 4; Lee here quotes Proverbs 23:7 "As he thinketh in his heart, so is he."

Netiv Hatorah 14

Source: Man for Himself: An Inquiry into the Psychology of Ethics

Also: Until the day when God shall deign to reveal the future to man, all human wisdom is summed up in these two words,— "Wait and hope".
Chapter 117 http://en.wikisource.org/wiki/The_Count_of_Monte_Cristo/Chapter_117
Variant: All human wisdom is contained in these two words - Wait and Hope
Source: The Count of Monte Cristo (1845–1846)

Source: Cosmos (1980), p. 282
Context: Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insights and knowledge, painfully extracted from Nature, of the greatest minds that ever were, with the best teachers, drawn from the entire planet and from all of our history, to instruct us without tiring, and to inspire us to make our own contribution to the collective knowledge of the human species. Public libraries depend on voluntary contributions. I think the health of our civilization, the depth of our awareness about the underpinnings of our culture and our concern for the future can all be tested by how well we support our libraries.

Source: The Journals of Ayn Rand

"Sui fondamenti della geometria" (1894), p. 141, as quoted in "The Mathematical Philosophy of Giuseppe Peano" by Hubert C. Kennedy, in Philosophy of Science Vol. 30, No. 3 (July 1963)
Context: Certainly it is permitted to anyone to put forward whatever hypotheses he wishes, and to develop the logical consequences contained in those hypotheses. But in order that this work merit the name of Geometry, it is necessary that these hypotheses or postulates express the result of the more simple and elementary observations of physical figures.