Don't wait for a smile to be nice.
不要等到了一个笑容，才表现出友善
Don't wait to be loved, to love.
不要等被爱之后，才去爱
Don't wait to be lonely, to recognize the value of a friend.
不要等到寂寞了，才明白朋友的价值
Don't wait for the best job, to begin to work.
不要非等到一份最好的工作，才开始工作
Don't wait to have a lot, to share a bit.
不要等得到了很多，才开始分享
Don't wait for the fall, to remember the advice.
不要等到失败后，才想起别人的忠告
Don't wait for pain, to believe in prayer.
不要等到受伤了，才愿意祈祷
Don't wait to have time, to be able to serve.
不要等到有时间，才去付出
Don't wait for anybody else pain, to ask for apologies...
不要等别人受伤了，才来乞求原谅
... neither separation to make it up.
不要等到分开了，才想到去挽回
Don't wait...
Because you don't know how long it will take.
不要等待，因为你不知道需要等待多长时间
（改编自：新东方 英语点津姗姗编辑）
。