Milestones Quotes

There are only a handful of really big milestones: single-celled life, multicellular life, differentiation of plants and animals, life extending from the oceans to land, mammals, consciousness. On that scale, the next important step is obvious: making life multiplanetary.

Inevitably, a long life can pass by many milestones; my own is no exception.

Remember to celebrate milestones as you prepare for the road ahead.

Battles are the principal milestones in secular history. Modern opinion resents this uninspiring truth, and historians often treat the decisions of the field as incidents in the dramas of politics and diplomacy.