A calculating engine is one of the most intricate forms of mechanism, a telegraph key one of the simplest. But compare their value.
Evolution pays and that is why there is evolution
Nothing cools so fast as undue enthusiasm. Water that has boiled freezes sooner than any other.
Is any knowledge worthless? Try to think of an example.
Discovery begins by finding the discoverer.
A tree nowhere offers a straight line or a regular curve, but who doubts that root, trunk, boughs, and leaves embody geometry?