1] Life is like an ocean. Only a strong-willed person can reach the other shore. Marx

[2] merit = hard work+correct method+less empty talk. Einstein

[3] it is much more difficult to turn words into actions than actions into words. Gorky

[4] without great difficulties, there will be no great cause. Voltaire

[5] Those who made great achievements in ancient times were not only outstanding talents, but also determined to persevere. Su Shi