[Letter to his wife, Natalia Sedova]In addition to the happiness of being a fighter for the cause of socialism, fate gave me the happiness of being her husband. During the almost forty years of our life together she remained an inexhaustible source of love, magnanimity, and tenderness. She underwent great sufferings, especially in the last period of our lives. But I find some comfort in the fact that she also knew days of happiness.For forty-three years of my conscious life I have remained a revolutionist; for forty-two of them I have fought under the banner of Marxism. If I had to begin all over again I would of course try to avoid this or that mistake, but the main course of my life would remain unchanged. I shall die a proletarian revolutionist, a Marxist, a dialectical materialist, and, consequently, an irreconcilable atheist. My faith in the communist future of mankind is not less ardent, indeed it is firmer today, than it was in the days of my youth.Natasha has just come up to the window from the courtyard and opened it wider so that the air may enter more freely into my room. I can see the bright green strip of grass beneath the wall, and the clear blue sky above the wall, and sunlight everywhere. Life is beautiful. Let the future generations cleanse it of all evil, oppression and violence, and enjoy it to the full.

~ Leon Trotsky

The mystery of this courage of Bauer’s is Hegel’s Phenomenology. As Hegel here puts self-consciousness in the place of man, the most varied human reality appears only as a definite form, as a determination of self-consciousness. But a mere determination of self-consciousness is a “pure category,” a mere “thought” which I can consequently also abolish in “pure” thought and overcome through pure thought. In Hegel’s Phenomenology the material, perceptible, objective bases of the various estranged forms of human self-consciousness are left as they are. Thus the whole destructive work results in the most conservative philosophy because it thinks it has overcome the objective world, the sensuously real world, by merely transforming it into a “thing of thought” a mere determination of self-consciousness and can therefore dissolve its opponent, which has become ethereal, in the “ether of pure thought.” Phenomenology is therefore quite logical when in the end it replaces human reality by “Absolute Knowledge”—Knowledge, because this is the only mode of existence of self-consciousness, because self-consciousness is considered as the only mode of existence of man; absolute knowledge for the very reason that self-consciousness knows itself alone and is no more disturbed by any objective world. Hegel makes man the man of self-consciousness instead of making self-consciousness the self-consciousness of man, of real man, man living in a real objective world and determined by that world. He stands the world on its head and can therefore dissolve in the head all the limitations which naturally remain in existence for evil sensuousness, for real man. Besides, everything which betrays the limitations of general self-consciousness—all sensuousness, reality, individuality of men and of their world—necessarily rates for him as a limit. The whole of Phenomenology is intended to prove that self-consciousness is the only reality and all reality.

~ Karl Marx