“True Budo is practiced not only to destroy an enemy, it must also make him, or his own will, gladly lose his spirit (seishin) to oppose you.”

Der Mensch der Erkenntniss muss nicht nur seine Feinde lieben, er muss auch seine Freunde hassen können.
Foreword, in the Oscar Levy authorized translation.
Variant translations:
The man of knowledge must be able not only to love his enemies but also to hate his friends.
Ecce Homo (1888)

(from 2012 essay Catching Up with Our Humanity).
From Articles, Essays, and Poems, On Guerrilla Decontextualization

1910s, The Progressives, Past and Present (1910)
Context: Fundamentally, our chief problem may be summed up as the effort to make men as nearly as they can be made, both free and equal; the freedom and equality necessarily resting on a basis of justice and brotherhood. It is not possible, with the imperfections of mankind, ever wholly to achieve such an ideal, if only for the reason that the shortcomings of men are such that complete and unrestricted individual liberty would mean the negation of even approximate equality, while a rigid and absolute equality would imply the destruction of every shred of liberty. Our business is to secure a practical working combination between the two. This combination should aim, on the one hand to secure to each man the largest measure of individual liberty that is compatible with his fellows getting from life a just share of the good things to which they are legitimately entitled; while, on the other hand, it should aim to bring about among well-behaved, hardworking people a measure of equality which shall be substantial, and which shall yet permit to the individual the personal liberty of achievement and reward without which life would not be worth living, without which all progress would stop, and civilization first stagnate and then go backwards. Such a combination cannot be completely realized. It can be realized at all only by the application of the spirit of fraternity, the spirit of brotherhood. This spirit demands that each man shall learn and apply the principle that his liberty must be used not only for his own benefit but for the interest of the community as a whole, while the community in its turn, acting as a whole, shall understand that while it must insist on its own rights as against the individual, it must also scrupulously safeguard these same rights of the individual.

An account of an experience of transcendent awareness, soon after a contest where, unarmed, he defeated a naval officer armed with a bokken (wooden sword) without harming him; as quoted in Aikido (1985) by Kisshomaru Ueshiba <!-- Hozansha Publications, Tokyo -->
Context: I felt the universe suddenly quake, and that a golden spirit sprang up from the ground, veiled my body, and changed my body into a golden one. At the same time my body became light. I was able to understand the whispering of the birds, and was clearly aware of the mind of God, the creator of the universe.
At that moment I was enlightened: the source of Budo is God's love — the spirit of loving protection for all beings … Budo is not the felling of an opponent by force; nor is it a tool to lead the world to destruction with arms. True Budo is to accept the spirit of the universe, keep the peace of the world, correctly produce, protect and cultivate all beings in nature.

Villars to Louis XIV after the Battle of Malplaquet, quoted in Anquetil, Louis-Pierre, Histoire de France depuis les Gaulois jusqu'à la mort de Louis XVI (1819), Paris: Chez Janet et Cotelle, p. 241.

"Men of the Thirty-Third Division: An Essay on Integrity", p. 136
Eight Little Piggies (1993)

Go Rin No Sho (1645), The Fire Book
Context: The Three Methods to Forestall the Enemy
The first is to forestall him by attacking. This is called Ken No Sen (to set him up).
Another method is to forestall him as he attacks. This is called Tai No Sen (to wait for the initiative).
The other method is when you and the enemy attack together. This is called Tai Tai No Sen (to accompany him and forestall him).
There are no methods of taking the lead other than these three. Because you can win quickly by taking the lead, it is one of the most important things in strategy. There are several things involved in taking the lead. You must make the best of the situation, see through the enemy's spirit so that you grasp his strategy and defeat him. It is impossible to write about this in detail.