“All of us, without being taught, have attained to a belief in some sort of divinity, though it is not easy for all men to know the precise truth about it, nor is it possible for those who do know it to tell it to all men.”
Against the Galilaeans (c. 362)
Context: All of us, without being taught, have attained to a belief in some sort of divinity, though it is not easy for all men to know the precise truth about it, nor is it possible for those who do know it to tell it to all men. … Surely, besides this conception which is common to all men, there is another also. I mean that we are all by nature so closely dependent on the heavens and the gods that are visible therein, that even if any man conceives of another god besides these, he in every case assigns to him the heavens as his dwelling-place; not that he thereby separates him from the earth, but he so to speak establishes the King of the All in the heavens as in the most honourable place of all, and conceives of him as overseeing from there the affairs of this world. What need have I to summon Hellenes and Hebrews as witnesses of this? There exists no man who does not stretch out his hands towards the heavens when he prays; and whether he swears by one god or several, if he has any notion at all of the divine, he turns heavenward. And it was very natural that men should feel thus.
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Julian (emperor) 97
Roman Emperor, philosopher and writer 331–363Related quotes

James Burgh, in The Dignity of Human Nature (1754)
Misattributed

“Some men fish all their lives without knowing it is not really the fish they are after.”

“Do not know the truth by the men, but know the truth, and then you will know who are truthful.”
The Deliverance from Error https://www.amazon.com/Al-Ghazalis-Path-Sufism-Deliverance-al-Munqidh/dp/1887752307

Source: Uncle Tom's Cabin (1852), Ch. 29 The Unprotected
Context: We hear often of the distress of the negro servants, on the loss of a kind master; and with good reason, for no creature on God's earth is left more utterly unprotected and desolate than the slave in these circumstances.
The child who has lost a father has still the protection of friends, and of the law; he is something, and can do something, — has acknowledged rights and position; the slave has none. The law regards him, in every respect, as devoid of rights as a bale of merchandise. The only possible acknowledgment of any of the longings and wants of a human and immortal creature, which are given to him, comes to him through the sovereign and irresponsible will of his master; and when that master is stricken down, nothing remains.
The number of those men who know how to use wholly irresponsible power humanely and generously is small. Everybody knows this, and the slave knows it best of all; so that he feels that there are ten chances of his finding an abusive and tyrannical master, to one of his finding a considerate and kind one. Therefore is it that the wail over a kind master is loud and long, as well it may be.

Letter to A. Bronson (30 July 1838); a similar idea was later more famously expressed by Abraham Lincoln, "With malice towards none, with charity for all, with firmness in the right, as God gives us to see the right".

Source: Six Characters in Search of an Author and Other Plays

“There are truths which are not for all men, nor for all times.”
Il y a des vérités qui ne sont pas pour tous les hommes et pour tous les temps.
Letter to François-Joachim de Pierre, cardinal de Bernis (23 April 1764)
Citas