The historic ascent of humanity, taken as a whole, may be summarized as a succession of victories of consciousness over blind forces — in nature, in … - Leon Trotsky

The Moscow trials are perpetrated under the banner of socialism. We will not concede this banner to the masters of falsehood! If our generation happens to be too weak to establish Socialism over the earth, we will hand the spotless banner down to our children. The struggle which is in the offing transcends by far the importance of individuals, factions and parties. It is the struggle for the future of all mankind. It will be severe, it will be lengthy. Whoever seeks physical comfort and spiritual calm let him step aside. In time of reaction it is more convenient to lean on the bureaucracy than on the truth. But all those for whom the word 'Socialism' is not a hollow sound but the content of their moral life – forward! Neither threats nor persecutions nor violations can stop us! Be it even over our bleaching bones the truth will triumph! We will blaze the trail for it. It will conquer! Under all the severe blows of fate, I shall be happy as in the best days of my youth! Because, my friends, the highest human happiness is not the exploitation of the present but the preparation of the future.

The fundamental evil of the capitalist system is not the extravagance of the possessing classes, however disgusting that may be in itself, but the fact that in order to guarantee its right to extravagance the bourgeoisie maintains its private ownership of the means of production, thus condemning the economic system to anarchy and decay.

Let us not forget that revolutions are accomplished through people, although they be nameless. Materialism does not ignore the feeling, thinking, and acting man, but explains him.