One's happiness depends less on what he knows than on what he feels.
Science may eventually explain the world of How. The ultimate world of Why may remain for contemplation, philosophy, religion.
There is great satisfaction in a well-made clean tool that does its work well.
Tools of many kinds and well chosen, are one of the joys of a garden.
There are two essential epochs in any enterprise - to begin, and to get done.
No beast has ever overcome the earth; and the natural world has never been conquered by muscular force.