既来之，则安之

英语谚语
1.Take things as they come. 既来之，则安之；
2.All rivers run into sea.海纳百川；
3.Custom is a second nature. 习惯是后天养成的；
4.Don‘t claim to know what you don‘t know. 不要不懂装懂；
5.A fall into a pit, a gain in your wit. 吃一堑，长一智。