“Truth suffers no loss if a vehement youth fails in finding it, in the same way that virtue and religion suffer no detriment if a criminal denies them.”

Source: Faith vs. Fact (2015), p. xvi

Variant translations:
Virtue and vice are not the same, even if they undergo the same torment.
The violence which assails good men to test them, to cleanse and purify them, effects in the wicked their condemnation, ruin, and annihilation.
The City of God (early 400s)
Context: Wherefore, though good and bad men suffer alike, we must not suppose that there is no difference between the men themselves, because there is no difference in what they both suffer. For even in the likeness of the sufferings, there remains an unlikeness in the sufferers; and though exposed to the same anguish, virtue and vice are not the same thing. For as the same fire causes gold to glow brightly, and chaff to smoke; and under the same flail the straw is beaten small, while the grain is cleansed; and as the lees are not mixed with the oil, though squeezed out of the vat by the same pressure, so the same violence of affliction proves, purges, clarifies the good, but damns, ruins, exterminates the wicked. And thus it is that in the same affliction the wicked detest God and blaspheme, while the good pray and praise. So material a difference does it make, not what ills are suffered, but what kind of man suffers them. For, stirred up with the same movement, mud exhales a horrible stench, and ointment emits a fragrant odor.

Source: Man's Search for Meaning

Contribution to the Critique of Hegel's Philosophy of Right, Introduction..., p. 1 (1843).
Context: Religious suffering is, at one and the same time, the expression of real suffering and a protest against real suffering. Religion is the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people.
The abolition of religion as the illusory happiness of the people is the demand for their real happiness. To call on them to give up their illusions about their condition is to call on them to give up a condition that requires illusions. The criticism of religion is, therefore, in embryo, the criticism of that vale of tears of which religion is the halo.
Criticism has plucked the imaginary flowers on the chain not in order that man shall continue to bear that chain without fantasy or consolation, but so that he shall throw off the chain and pluck the living flower.

Manuscript Found in Accra (2012), Our fate

[The Goals Program. How to Stay Motivated, Volume III, chapter 5, Zig Ziglar]
Attributed

"A Plea For Intolerance" (1931)