Strong belief can achieve the impossible.
Une forte croyance peut accomplir l'impossible. (Une forte croyance peut accomplir l'impossible.)
"He believes that faith can move mountains when you truly believe."
"Il croit que la foi peut déplacer des montagnes quand vous croyez vraiment." (Il croit que **la foi peut deplacer des montagnes** quand vous croyez vraiment.)
to stay positive and not lose hope in difficult situations
feeling sad or depressed
the most important point; the final result or profit
to sell very quickly and in large quantities
to fail completely or embarrassingly
small adjustments to improve something