يكون نجاحك على قدر الجهد الذهني الذي تبذله فيه.
النص الأصلي بالإنجليزية
“Your success will be proportioned to the amount of mental effort you devote to it.”T. E. Lawrence — The Collected Works of Lawrence of Arabia (Unabridged): Seven Pillars of Wisdom + The Mint + The Evolution of a Revolt + Complete Letters (Including Translations of The Odyssey and The Forest Giant) (2015)