In the middle of difficulty lies opportunity. Albert Einstein
It is not because things are difficult that we do not dare; it is because we do not dare that they are difficult. Seneca
Divide each difficulty into as many parts as is feasible and necessary to resolve it. Rene Descartes
The greater the difficulty the more glory in surmounting it. Skillful pilots gain their reputation from storms and tempests. Epictetus
There is nothing so easy but that it becomes difficult when you do it reluctantly. Terence.
The superior man makes the difficulty to be overcome his first interest; success only comes later. Confucius
The greater the difficulty, the greater the glory. Cicero