Max Weber said this quote

... It is immensely moving when a mature man - no matter whether old or young in years - is aware of a responsibility with heart and soul. He then acts by following an ethic of responsibility and somewhere reaches the point where he says: 'Here I stand; I can do no other'. That is something genuinely human and moving. And every one of us who is not spiritually dead must realize the possibility of finding himself at some time in that position. In so far as this is true, an ethic of ultimate ends and an ethic of responsibility are not absolute contrasts but rather supplements, which only in unison constitute a genuine man - a man who can have the 'calling for politics'.