“Beware of sentimental alliances where the consciousness of good deeds is the only compensation for noble sacrifices.”

"Einstein's Reply to Criticisms" (1949), The World As I See It (1949)
Context: I am absolutely convinced that no wealth in the world can help humanity forward, even in the hands of the most devoted worker in this cause. The example of great and pure characters is the only thing that can produce fine ideas and noble deeds. Money only appeals to selfishness and always tempts its owners irresistibly to abuse it.
Can anyone imagine Moses, Jesus, or Gandhi armed with the money-bags of Carnegie?

Address to the Women's Canadian Club, Montreal, Quebec, March 26, 1958
Speaking Of Canada - (1959)

Source: The Ordeal of Change (1963), Ch. 15: "The Unnaturalness Of Human Nature"
Context: The weak are not a noble breed. Their sublime deeds of faith, daring, and self-sacrifice usually spring from questionable motives. The weak hate not wickedness but weakness; and one instance of their hatred of weakness is hatred of self. All the passionate pursuits of the weak are in some degree a striving to escape, blur, or disguise an unwanted self. It is a striving shot through with malice, envy, self-deception, and a host of petty impulses; yet it often culminates in superb achievements. Thus we find that people who fail in everyday affairs often show a tendency to reach out for the impossible. They become responsive to grandiose schemes, and will display unequaled steadfastness, formidable energies and a special fitness in the performance of tasks which would stump superior people. It seems paradoxical that defeat in dealing with the possible should embolden people to attempt the impossible, but a familiarity with the mentality of the weak reveals that what seems a path of daring is actually an easy way out: It is to escape the responsibility for failure that the weak so eagerly throw themselves into grandiose undertakings. For when we fail in attaining the possible the blame is solely ours, but when we fail in attaining the impossible we are justified in attributing it to the magnitude of the task.

The Art of Loving (1956)
Context: The lack of objectivity, as far as foreign nations are concerned, is notorious. From one day to another, another nation is made out to be utterly depraved and fiendish, while one’s own nation stands for everything that is good and noble. Every action of the enemy is judged by one standard — every action of oneself by another. Even good deeds by the enemy are considered a sign of particular devilishness, meant to deceive us and the world, while our bad deeds are necessary and justified by our noble goals which they serve.

C'est avec de beaux sentiments qu'on fait de la mauvaise littérature.
Letter to François Mauriac (1929)

Source: The Count of Monte Cristo

Source: I Capture the Castle