No man knows until he tries how wearisome and disheartening the burthen of one of them is, and how the annoyance grows and strengthens from year to year, and the courage becomes weaker to bear it
 William Makepeace Thackeray, The Luck of Barry Lyndon (1844). copy citation

Context

“when they will see it was no such great prize that I had won, and that wealth, splendour, thirty thousand per annum, and a seat in Parliament, are often purchased at too dear a rate, when one has to buy those enjoyments at the price of personal liberty, and saddled with the charge of a troublesome wife. They are the deuce, these troublesome wives, and that is the truth. No man knows until he tries how wearisome and disheartening the burthen of one of them is, and how the annoyance grows and strengthens from year to year, and the courage becomes weaker to bear it; so that that trouble which seemed light and trivial the first year, becomes intolerable ten years after. I have heard of one of the classical fellows in the dictionary who began by carrying a calf up a hill every day, and so continued until the animal grew to be a bull, which he still easily accommodated upon his shoulders;” source