“An unlimited capacity of a human for self-improvement makes him an object of constant respect and admiration.”
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Zafar Mirzo 149
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Source: Guide for the Perplexed (c. 1190), Part III, Ch.32
Context: What prevented Him from making His primary object a direct commandment to us, and to give us the capacity of obeying it?... As it is the chief object and purpose of God that we should believe in the Law, and act according to that which is written therein, why has He not given us the capacity of continually believing in it, and following its guidance, instead of holding out to us reward for obedience, and punishment for disobedience, or of actually giving all the predicted reward and punishment? For [the promises and the threats] are but the means of leading to this chief object. What prevented Him from giving us, as part of our nature, the will to do that which He desires us to do, and to abandon the kind of worship which He rejects? There is one general answer to these three questions, and all questions of the character; it is this: Although in every one of the signs [related in Scripture] the natural property of some individual being is changed, the nature of man is never changed by God by way of miracle.... it is in His power, according to the principles taught in Scripture, but it has never been His will to do it, and it never will be. If it were part of His will to change [at His desire] the nature of any person, the mission of prophets and the giving of the Law would have been altogether superfluous.

1940s, Third inaugural address (1941)

“Women seem to have almost unlimited capacity for forgiveness.”
Since it is usually a man who needs forgiveness, this must be a racial survival trait.
Richard Ames; chapter 16, p. 200
The Cat Who Walks Through Walls (1985)

Amoureux et jaloux de la liberté humaine, et la considérant comme la condition absolue de tout ce que nous adorons et respectons dans l'humanité, je retourne la phrase de Voltaire, et je dis : Si Dieu existait réellement, il faudrait le faire disparaître.
Source: God and the State (1871; publ. 1882), Ch. II; Variants or variant translations of this statement have also been attributed to Bakunin:
The first revolt is against the supreme tyranny of theology, of the phantom of God. As long as we have a master in heaven, we will be slaves on earth.
A boss in Heaven is the best excuse for a boss on earth, therefore If God did exist, he would have to be abolished.