A state of quietness Tea is said to be the way. This is because it is something one learns to appreciate through feeling, not through verbal instructions. If a person maintains a state of quietness, only then will one appreciate the quietness inherent in tea. Lu Yu, The Book of Tea silenceunderstanding
A minimum size to fish There is the famous story by Eddington about some people who went fishing in the sea with a net. Upon examining the size of the fish they had caught, they decided there was a minimum size to the fish in the sea! Their conclusion arose from the tool used and not from reality. Richard Hamming, The Art of Doing Science and Engineering: Learning to Learn Every Tool Shapes the Task tools