If you are neutral in situations of injustice, you have chosen the side of the oppressor. If an elephant has its foot on the tail of a mouse and you say that you are neutral, the mouse will not appreciate your neutrality.
__Bishop Desmond Tutu
It is characteristic of science that the full explanations are often seized in their essence by the percipient scientist long in advance of any possible proof.
__John Desmond Bernal, The Origin of Life, 1967