“There is no knowledge so hard to acquire as the knowledge of how to live this life well and naturally.”

Source: Frankenstein

1950s, The Impact of Science on Society (1952)

His lecture on leadership as part of the Field Marshal KM Kariappa Memorial Lectures.

Source: [Field Marshal KM Kariappa Memorial Lectures, 1995-2000, http://books.google.com/books?id=Eux31FCNj8MC&pg=PA21, 2001, Lancer Publishers, 978-81-7062-119-5, 21–]

Diary (15 May 1878)
Diary and Letters of Rutherford Birchard Hayes (1922 - 1926)
Context: General education is the best preventive of the evils now most dreaded. In the civilized countries of the world, the question is how to distribute most generally and equally the property of the world. As a rule, where education is most general the distribution of property is most general.... As knowledge spreads, wealth spreads. To diffuse knowledge is to diffuse wealth. To give all an equal chance to acquire knowledge is the best and surest way to give all an equal chance to acquire property.

Source: Guide for the Perplexed (c. 1190), Part III, Ch.23
Context: The words of God are justified, as I will show, by the fact that Job abandoned his first very erroneous opinion, and himself proved that it was an error. It is the opinion which suggests itself as plausible at first thought, especially in the minds of those who meet with mishap, well knowing that they have not merited them through sins. This is admitted by all, and therefore this opinion was assigned to Job. But he is represented to hold this view only so long as he was without wisdom, and knew God only by tradition, in the same manner as religious people generally know Him. As soon as he had acquired a true knowledge of God, he confessed that there is undoubtedly true felicity in the knowledge of God; it is attained by all who acquire that knowledge, and no earthly trouble can disturb it. So long as Job's knowledge of God was based on tradition and communication, and not on research, he believed that such imaginary good as is possessed in health, riches, and children, was the utmost that men can attain; this was the reason why he was in perplexity, and why he uttered the... opinions, and this is also the meaning of his words: "I have heard of thee by the hearing of the ear; but now mine eye seeth thee. Wherefore I abhor myself, and repent because of dust and ashes" (xlii. 5, 6); that is to say, he abhorred all that he had desired before, and that he was sorry that he had been in dust and ashes; comp. "and he sat down among the ashes" (ii. 8) On account of this last utterance, which implies true perception, it is said afterwards in reference to him, "for you have not spoken of me the thing that is right, as my servant Job hath."

Letter Accepting 2018 Andrei Sakharov Prizefrom (2018)

Majlisi, Bihārul Anwār, vol.1, p. 172
Regarding Knowledge & Wisdom, General

Edward B. Titchener, An Outline of Psychology (1916), p. 1.

[Bakerian lecture.―On the statistical and thermodynamical relations of radiant energy, Proceedings of the Royal Society of London. Series A, 83, 560, 1909, 82–95, 10.1098/rspa.1909.0080] (p. 82)