Life is half spent before we know what it is.
人过半生，方知天命。
Life is not all roses.
人生并不是康庄大道。
Life without a friend is death.
没有朋友，虽生犹死。
Like a rat in a hole.
瓮中之鳖。
Like author, like book.
文如其人。
Like father, like son.
有其父必有其子。
Like for like.
一报还一报。
Like knows like.
惺惺相惜。
Like mother, like daughter.
有其母必有其女。
Like teacher, like pupil.
什么样的老师教什么样的学生。
Like tree, like fruit.
羊毛出在羊身上。
