“In general, just as painters in working from models constantly gaze at their exemplar and thus strive to transfer the expression of the original to their own artistry, so too he who is anxious to make himself perfect in all the kinds of virtue must gaze upon the lives of the saints as upon statues, so to speak, that move and act, and must make their excellence his own by imitation.”

God and the State (1871; publ. 1882)
Context: A person is strong only when he stands upon his own truth, when he speaks and acts from his deepest convictions. Then, whatever the situation he may be in, he always knows what he must say and do. He may fall, but he cannot bring shame upon himself or his cause. If we seek the liberation of the people by means of a lie, we will surely grow confused, go astray, and lose sight of our objective, and if we have any influence at all on the people we will lead them astray as well — in other words, we will be acting in the spirit of reaction and to its benefit.

Source: The Montessori Method (1912), Ch. 5 : Discipline, p. 100.
Context: Let us picture to ourselves a clever and proficient workman, capable, not only of producing much and perfect work, but of giving advice in his workshop, because of his ability to control and direct the general activity of the environment in which he works. The man who is thus master of his environment will be able to smile before the anger of others, showing that great mastery of himself which comes from consciousness of his ability to do things. We should not, however, be in the least surprised to know that in his home this capable workman scolded his wife if the soup was not to his taste, or not ready at the appointed time. In his home, he is no longer the capable workman; the skilled workman here is the wife, who serves him and prepares his food for him. He is a serene and pleasant man where he is powerful through being efficient, but is domineering where he is served. Perhaps if he should learn how to prepare his soup he might become a perfect man! The man who, through his own efforts, is able to perform all the actions necessary for his comfort and development in life, conquers himself, and in doing so multiplies his abilities and perfects himself as an individual.
We must make of the future generation, powerful men, and by that we mean men who are independent and free.

Source: The Limits of Evolution, and Other Essays, Illustrating the Metaphysical Theory of Personal Ideaalism (1905), The Harmony of Determinism and Freedom, p.325

Source: 1940s, Balinese Character (1942), p. 7

Source: The Anarchist Cookbook (1971), Chapter Three: "Natural, Nonlethal, and Lethal Weapons", p. 93.

The Improvisatrice (1824)

“The Age of Criticism”, p. 79
Poetry and the Age (1953)

Part Three, The Means of Correct Training
Discipline and Punish (1977)

Introductio ad prudentiam: Part II (1727)