求一篇关于感慨时间一去不复返的 英文 文章!

Just one hour ago,I was lying in my bed reading a book.
Just one day ago,I was at the Edufair in KLCC with Tao.
Just one week ago,I was returning home from Genting Highlands with my family.
Just one month ago,I was in Adelaide,checking out UniSA.
Just one year ago,I was beginning my Foundation in Communications course.
Time flies.
Time flies so fast that you don't even realize it's gone,until in a sudden moment of introspection,you stop,look around,and think,'Where has the time gone?' And that's the truth.Time waits for no man.You may mope around for days,weeks,months,years,over a breakup,and expect everyone to pity you,but eventually,people have to move on.Things have to change,otherwise if the world around you changes,and you don't change,you'll be swept away.Even rocks in the sea get worn smooth by the crashing waves,and eventually become the sand on the seabed.
"The past is history,tomorrow is a mystery,but today...today is a gift." - Master Ooguay
The most important thing is to be able to listen to your heart.To be able to change,externally,mature,grow,go with the flow,but at the core,you still know who you are.Rejoice in that you have today,stop regretting the past and worry not about the future,for it has yet to be shaped.
After all,time flies.
（内容转载自.收藏的一篇文.虽然这不是大家手笔,但是胜在真情流露.）

how time flies
Time flies when we are having fun is an old expression. We know, as we reminisce of our past, time flies regardless.
As we grow beyond our teenage. We remember the times of fu...

多长？用于什么场合？听众是谁？得说清楚啊~