Robert Dykstra said this quote
“ No pain, no gain. You can hear the phrase in the world of physical exercise and conditioning. Muscles that feel no pain are probably getting neither stronger, nor more flexible. It presents an analogy for the exercise of the heart. Those who run the risk of genuine love alone must worry about emotional pain. The more friends; the more good-byes - and the more wakes to attend, the more graves to visit, the more deaths to share. Those who truly live life to the fullest will bear the full cup of suffering. Only those who are willing to pay the price in pain and anguish find life full to the brim. Happy people also suffer; they are no more lucky than the rest. They create their own happiness. That's the rule of thumb.Some thumbs, however, don't seem to rule very well. Slogans and catch-words, for all their conventional wisdom, fail to carry the whole weight of truth; they leave too much room for false inferences. No pain, no gain may leave one with nothing but pain - an intolerable amount of it. There is simply no guarantee that pain will bring gain, that hardship will yield happiness, that suffering will make one a better person. It may; but it's not inevitable. ”