A truly great book should be read in youth, again in maturity and once more in old age, as a fine building should be seen by morning light, at noon and by moonlight.
I became intrigued with colour theory. The absurd pronouncements of the Colour Institute, a group that decides what colours are hot each year or season, amused me.
You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.