كثيرًا ما يصير الإنسان ما يعتقد أنه عليه. فإن ظللتُ أقول لنفسي إنني لا أستطيع فعل أمر ما، فقد أنتهي فعلًا إلى عجزٍ عنه. أما إن آمنتُ بأنني أستطيعه، فسأكتسب لا محالة القدرة على فعله، حتى وإن لم أملكها في البداية.

“Man often becomes what he believes himself to be. If I keep on saying to myself that I cannot do a certain thing, it is possible that I may end by really becoming incapable of doing it. On the contrary, if I have the belief that I can do it, I shall surely acquire the capacity to do it even if I may not have it at the beginning.”Mahatma Gandhi — The Essential Gandhi: His Life, Work, and Ideas : an Anthology (1962)