“Lifelong learning is no longer a luxury but a necessity for employment.”

Source: The Secret Agent (1907), Ch. 2

The Saviors of God (1923)
Context: It is our duty to help liberate that God who is stifling in us, in mankind, in masses of people living in darkness.
We must be ready at any moment to give up our lives for his sake. For life is not a goal; it is also an instrument, like death, like beauty, like virtue, like knowledge. Whose instrument? Of that God who fights for freedom.
We are all one, we are all an imperiled essence. If at the far end of the world a spirit degenerates, it drags down our spirit into its own degradation. If one mind at the far end of the world sinks into idiocy, our own temples over-brim with darkness.
For it is only One who struggles at the far end of earth and sky. One. And if He goes lost, it is we who must bear the responsibility. If He goes lost, then we go lost.
This is why the salvation of the Universe is also our salvation, why solidarity among men is no longer a tenderhearted luxury but a deep necessity and self-preservation, as much a necessity as, in an army under fire, the salvation of your comrade-in-arms.

Source: Point Counter Point (1928), Ch. 17
Context: Ever since his mother’s second marriage Spandrell had always perversely made the worst of things, chosen the worst course, deliberately encouraged his own worst tendencies. It was with debauchery that he distracted his endless leisures. He was taking his revenge on her... He was spiting her, spiting himself, spiting God. He hoped there was a hell for him to go to and regretted his inability to believe in its existence.... it was even exciting in those early days to know that one was doing something bad and wrong. But there is in debauchery something so intrinsically dull, something so absolutely and hopelessly dismal, that it is only the rarest beings, gifted with much less than the usual amount of intelligence and much more than the usual intensity of appetite, who can go on actively enjoying a regular course of vice or continue actively to believe in its wickedness. Most habitual debauchees are debauchees not because they enjoy debauchery, but because they are uncomfortable when deprived of it. Habit converts luxurious enjoyments into dull and daily necessities.

Niklaus Wirth (1997) " A Few Words with Niklaus Wirth http://www.eptacom.net/pubblicazioni/pub_eng/wirth.html". Dr Carlo Pescio eds. June 1997.

As quoted in A Small Drop of Ink: A Collection of Inspirational and Moving Quotations of the Ages (2003) by Linda Pendleton.

"Down the River", p. 148
Desert Solitaire (1968)

Source: The Traveller (1764), Line 22.