“The most spiritual human beings, assuming they are the most courageous, also experience by far the most painful tragedies: but it is precisely for this reason that they honor life, because it brings against them its most formidable weapons.”

1790s, The Age of Reason, Part I (1794)

Source: On the Heights of Despair

Transhumanism (1957)
Context: We are beginning to realize that even the most fortunate people are living far below capacity, and that most human beings develop not more than a small fraction of their potential mental and spiritual efficiency. The human race, in fact, is surrounded by a large area of unrealized possibilities, a challenge to the spirit of exploration.

Dans ce bel honneur de métier convergeaient tous le plus beaux, tous le plus nobles sentiments. Une dignité. Une fierté. Ne jamais rien demander à personne, disaient-ils. … Un ouvrier de ce temps-là ne savait pas ce que c’est que quémander. C’est la bourgeoisie qui quémande. C’est la bourgeoisie qui, les faisant bourgeois, leur a appris a quémander.
Source: Basic Verities, Prose and Poetry (1943), p. 81

I and Thou (1923)
Context: Some would deny any legitimate use of the word God because it has been misused so much. Certainly it is the most burdened of all human words. Precisely for that reason it is the most imperishable and unavoidable. And how much weight has all erroneous talk about God's nature and works (although there never has been nor can be any such talk that is not erroneous) compared with the one truth that all men who have addressed God really meant him? For whoever pronounces the word God and really means Thou, addresses, no matter what his delusion, the true Thou of his life that cannot be restricted by any other and to whom he stands in a relationship that includes all others.

Comment on Scott Aaronson's "Does it come with a 14-Gyr warranty?" http://www.scottaaronson.com/blog/?p=265#comment-7403
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Though most people are unaware of it, whichever way our energies play, that’s the way our bodies and our minds and our emotions play. So, once we get the energies—the fundamentals—moving in one direction, we can make sure that our bodies, emotions, and minds are also moving in that direction. -Sadhguru
Isha Insights Magazine, Spring Edition 2009
Sourced from newspapers and magazines

1990s, A Distinctly American Internationalism (November 1999)

La connaissance des pratiques féodales « est la raison pour laquelle je fus peut-être le plus redoutable fléau de la féodalité. »
[in Gracchus Babeuf avec les Egaux, Jean-Marc Shiappa, Les éditions ouvrières, 1991, 13, 27082 2892-7]
On feudalism