Buying a car today would be so nice!
Having a car thats old is quite alright;
Getting a car tomorrow would be wise!
Changing a car each day would not be right.

Having something thats old is good enough;
Having something today seems still better;
Having something tomorrow is quite tough;
Yet, satisfaction's prime that must matter.

Each thing in time has its advantages;
Postponement's not something you always do;
One shouldn't decide slowly or take ages;
All things have demerits and beauty too!

Yet, values old have stood the test of time!
And modern things don't make life more sublime!

Dr John Celes

http://www.poemhunter.com/poem/sonnet-contentment-is-the-core-to-happiness/