"Does he treat you with respect at all times? That's the first question. The second question is, if he is the exact same person twenty years from now that he is today, would you still want to marry him? And finally, does he inspire to be a better person? You find someone you can answer yes to all three, then you've found a good man."

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If the lives of men were relieved of all need, hardship and adversity; if everything they took in hand were successful, they would be so swollen with arrogance that, though they might not burst, they would present the spectacle of unbridled folly-nay, they would go mad. And I may say, further, that a certain amount of care or pain or trouble is necessary for every man at all times. A ship without ballast is unstable and will not go straight.

— Arthur Schopenhauer