There is no birth of consciousness without pain. Carl Jung
Make it a point to do something every day that you dont want to do. This is the golden rule for acquiring the habit of doing your duty without pain. Mark Twain
Let every man in mankind's frailty consider his last day; and let none presume on his good fortune until he find Life, at his death, a memory without pain. Sophocles
No pleasure without pain. English Proverb
Love without pain is not to be found anywhere. Sicilian Proverb
No pleasure without pain. Traditional Proverb