Vannevar Bush ( van-NEE-var; March 11, 1890 – June 28, 1974) was an American engineer, inventor and science administrator, who during World War II headed the U.S. Office of Scientific Research and Development (OSRD), through which almost all wartime military R&D was carried out, including important developments in radar and...
Proof is the idol before whom the pure mathematician tortures himself.
In mathematics you don't understand things. You just get used to them.