Man must conquer nature.
...the evil system of colonialism and imperialism arose and throve with the enslavement of Negroes and the trade in Negroes, and it will surely come to its end with the complete emancipation of the Black people.
Let a hundred flowers bloom, let a hundred schools of thought contend.
The sky is no bigger than the mouth of the well.
Historical experience is written in blood and iron.
It's always darkest before it becomes totally black.