Buddhism Day by Day: To the Weak, Difficulty is a Closed Door,
“The Argentine educator Almafuerte wrote: ‘To the weak, difficulty is a closed door. To the strong however, it is a door waiting to be opened.’ Difficulties impede the progress of those who are weak. For the strong, however, they are an opportunity to open wide the doors to a bright future. Everything is determined by our attitude, by our resolve.”
Credit Daisaku Ikeda for the quote.