No endeavor that is worthwhile is simple in prospect; if it is right, it will be simple in retrospect.

No endeavor that is worthwhile is simple in prospect; if it is right, it will be simple in retrospect.

任何值得做的努力，其前景都不简单;如果是正确的，回想起来会很简单。

-- Edward Teller 爱德华·泰勒