-The highest stage in moral ure at which we can arrive is when we recognize that we ought to control our thoughts.
Charles Darwin
...it is always advisable to perceive clearly our ignorance.
Charles Darwin
What a book a devil's chaplain might write on the clumsy, wasteful, blundering, low, and horribly cruel work of nature!
Charles Darwin
In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.
Charles Darwin
It is not the mountain we conquer, but ourselves.