What a magnificent cause it is to work for the happiness of mankind, and how great this purpose is! ——Saint-Simon The greatest possible happiness for each person is in the greatest happiness achieved by all people. ——Zola True happiness can only be realized when you truly understand the value of life. ——Munir Nasuf Those who are interested in research are happy! Happier are those who can free their minds from delusion and free themselves from vanity through research. ——Lametli Treat the happiness of others as your own happiness, dedicate flowers to others, and keep the thorns to yourself! —— Valdes As long as you have a reasonable thing to do, your life will be particularly beautiful. ——Einstein Science is by no means a selfish pleasure. Those who are fortunate enough to devote themselves to scientific research should first use their knowledge to serve mankind. ——Marx Even if you turn into a handful of dirt, as long as it is paved on the road to truth and your friends can stride forward, it is the greatest happiness. ——Wu Yunduo The purpose of all human efforts is to obtain happiness. ——Irving Only a revolutionary, whether he lives or dies, can bring happiness to everyone. ——Lu Xun Cows eat grass and horses eat food. Cows enjoy the least and contribute the most, so it is best to be a scalper. I am willing to serve the party and the people as a scalper for the rest of my life. ——Wang Jinxi People find happiness in performing their duties. It's like a person carrying something on his back, but he feels very comfortable. If a person does not have it and does not perform any duties, it is like driving an empty car, that is, it is wasted. ——Rozov My art should only benefit poor people. Ah, what a happy moment! How happy I will be when I can come close to this! ——Beethoven Create, or brew future creation. It is a necessity: happiness can only exist when this necessity is satisfied. ——Romain Rolland The more happiness is shared with others, the more its value increases. ——Seiichi Morimura The bounden duty of scientists requires us to continue to strive to completely reveal the mysteries of nature. Mastering these mysteries can benefit mankind in the future. ——Joliot Curie Only the happiness of mankind as a whole is your happiness. ——Di Cigen If happiness lies in physical pleasure, then it should be said that the cow is happy when it finds fodder to eat. - Heraclitus If one day, I can contribute to the interests of our public, I will consider myself the happiest person in the world. ——Gogol Personal pain and joy must be integrated into the pain and joy of the times. ——Ai Qing There are tens of millions of mansions in Ande, which can shelter all the poor people in the world with joy. ——Du Fu A person who has lofty ideals will feel happy even in the most difficult times. ——Xu Teli Of course a writer must make money to live and write, but he should never live and write to make money. ——Marx Those who have nothing are blessed, because they will gain everything! ——Romain Rolland When you are happy, never lose the virtues that make you happy. ——Moroa Sudden death is not very painful, but long-term exhaustion is really unbearable. ——Anonymous

The vulgar goals that people strive for—property, vanity, luxurious life—have always seemed to me despicable. ——Einstein Happiness built on the suffering of others is not true happiness. ——A. Babaeva It is a myth to get happiness without paying any price. ——Xu Teli digs into the depths of the soul, causing people to suffer mental torture and get trauma. That is to say, from the injury, recuperation and healing, the pain is washed away, and the person is on the road to rebirth. ——Lu Xun The true perfection of a person does not lie in what he has, but in what he is. —— Wilde Humility does not mean caring more about others and less about yourself, nor does it mean admitting that you are incompetent, but it means fundamentally putting yourself aside. ——William Temple Human beings are the only animals that can blush, or the only animals that should blush.

——Mark Twain Habits are habits. No one can throw them out of the window, they can only lead them downstairs step by step. ——Mark Twain Life is not a game, therefore, we do not have the right to give up it just by our own will. ——Leo Tolstoy You understand that human life is neither as good nor as bad as people think. —— Maupassant The most noble ideas first, then money; a society with only money but no most noble ideas will collapse. ——Dostoyevsky If pain is exchanged for knowing the truth and adhering to the truth, then you should accept it consciously and happily. Then, and only then, will the pain turn into happiness. ——Zhang Zhixin The happiness of serious people does not lie in frivolous companions such as romance, entertainment and laughter, but in perseverance and perseverance. ——Cicero

You can borrow when writing a composition, but you must make these sentences your own instead of plagiarizing. I hope it will be helpful to you!