(fig.) (slang) to stick one's nose in other people's affairs (i.e. the scope of other people's business that one concerns oneself with is as wide as an ocean vista)
1.one who is not prepared to risk his child will never catch the wolf (proverb)2.(fig.) one who is unwilling to take risks will not achieve great things
it doesn't matter whether a cat is white or black; as long as it catches mice it's a good cat (variant of a Sichuanese saying used in a speech by Deng Xiaoping 邓小平[dèng xiǎo píng] in 1962, usually associated with his economic reforms starting in 1978, in which pragmatism was favored over ideological purity)