Rudolf Bing

There are two sighs of relief every night in the life of an opera manager. The first comes when the curtain goes up The second sigh of relief comes when the final curtain goes down without any disaster, and one realizes, gratefully, that the miracle has happened again.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

To ask questions can become the laziest and wobbliest occupation of a mind, but when you must yourself answer the problem that you have posed, you will meditate your question with care and frame it with precision.