Nevertheless, let no one boast. Just as every man, though he be the greatest genius, has very definite limitations in some one sphere of knowledge, a… - Arthur Schopenhauer

Buying books would be a good thing if one could also buy the time to read them; but as a rule the purchase of books is mistaken for the appropriation of their contents.

Epicurus, the great teacher of happiness, has correctly and finely divided human needs into three classes. First there are the natural and necessary needs which, if they are not satisfied, cause pain. Consequently, they are only victus et amictus [food and clothing] and are easy to satisfy. Then we have those that are natural yet not necessary, that is, the needs for sexual satisfaction. … These needs are more difficult to satisfy. Finally, there are those that are neither natural nor necessary, the needs for luxury, extravagance, pomp, and splendour, which are without end and very difficult to satisfy.

"Said in reference to Ludwig Wittgenstein: "Talent is like the marksman who hits a target which others cannot reach; genius is like the marksman who hits a target others cannot even see.