The religion of the atheist has a God-shaped blank at it's heart.
Biologically the species is the accumulation of the experiments of all its successful individuals since the beginning.
Alexander the Great changed a few boundaries and killed a few men. Both he and Napoleon were forced into fame by circumstances outside of themselves and by currents of the time, but Margaret Sanger made currents and circumstances. When the history of our civilization is written, it will be a biological history and Margaret Sanger will be its heroine.