Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all.
In this world, there is nothing softer or thinner than water. But to compel the hard and unyielding, it has no equal. That the weak overcomes the strong, that the hard gives way to the gentle -- this everyone knows. Yet no one asks accordingly.
Getting ahead in a difficult profession requires avid faith in yourself. That is why some people with mediocre talent, but with great inner drive, go much further than people with vastly superior talent.