"難關"的英文名言有：
1. "Adversity is the midwife of genius." - Ralph Waldo Emerson
2. "In adversity, the best is yet to come." - Irish Proverb
3. "Adversity leads to prosperity." - Spanish Proverb
4. "Adversity does not crush character, but adversity creates character." - Leo Tolstoy
5. "Through adversity, man acquires the true measure of himself." - Oswald Chambers
6. "When you are knocked down, get up again and don't stop until you succeed." - African Proverb
7. "In adversity, success is won; in ease, it is merely hoped for." - Chinese Proverb
這些名言都表達了在面對困難和挑戰時，我們應該堅持不懈，勇往直前的精神。