1, Spend everything to run your front. --Balzac
2, If you cherish your feathers too much, and do not let them suffer a little damage, then you will lose both wings, and will never be able to fly in the air again. --Shelley
3, It would be a real pleasure if we could strive for what we recognize as our great goal, instead of a fanatical, selfish flesh constantly complaining about why the world is not pleasant to it. -- George Bernard Shaw
4. Cease to strive, and life ceases. --Carlyle
5, Great energies are produced only for great purposes. --Stalin
6, Intelligent qualifications, inner drive, hard work ethic and perseverance are all required for success in scientific research. --Beveridge
7, Is it a compliment or a challenge to a scholar for the accomplishments he or she has obtained? I need the latter, (Youth Inspiration/) for the former only intoxicates, while the latter is a spur. --Pasteur
8, The pursuit of truth and knowledge and the struggle for them is one of the highest qualities of man. --Einstein
9, The secret of invention lies in constant endeavor. --Newton
10, The inventor is supported by a marvelous faith, and has the courage to advance in an unknowable world. --Balzac
11, to succeed in everything, it is necessary to pay the price: struggle. --Emerson
12, struggle is the father of all things. --Tao Xingzhi
13, Struggle for a better life is honorable behavior. --Mao Dun
14, One must look to the future and think of things to set out to do. But this is not easy to do. One's past is a growing burden. --Russell
15, The heart of struggle is in all men. --Li Shutong
16, After your heel is set, you must take your strength and skill and struggle for yourself. -- George Bernard Shaw
17, Progress, means that the goal is constantly moving forward, the stage is constantly being renewed, and its sight and shadow are constantly changing. --Hugo
18, You should concentrate your mind carefully on your business. Daylight, not bent by a lens and set at the focal point, should never cause an object to burn. --Maugham