The greatest happiness that everyone can get is one of the greatest happiness that everyone can get. Zola

True happiness can only be realized when you truly realize the value of life. Munir? Nasuf

Happy are those who are interested in research! Newcomers who can get rid of delusion and vanity through research are happier. -Teri in Latin America

Take the happiness of others as your own happiness, give flowers to others and keep thorns for 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 serve mankind with their own knowledge. Marx

Even if you become a handful of dirt, it is the greatest happiness as long as you lay it on the road to truth and let your partner stride over it. Wu Yunduo

The purpose of all human efforts is to obtain happiness. Irving

There is only one revolutionary, whether he is alive or dead, who can give everyone happiness. -Lu Xun

Cattle eat grass and horses eat food. Cattle enjoy the least and contribute the most, so it is best to be a scalper. I am willing to be an old ox for the party and the people all my life. -Wang Jinxi

People get happiness in performing their duties. It's like a person carrying something on his back, but his heart is very comfortable. If people don't do their duty without it, it's like driving an empty car, that is, it's a waste. Rozov

My art should only benefit the poor. Ah, what a happy moment! How happy I should be to be close to this! -Beethoven

Create, or brew future creation. This is a necessity: happiness can only exist when this necessity is satisfied. Roman? Long-distance radio navigation system

The more happiness you share with others, the more its value will increase. Seiichi Morimura

The bounden duty of scientists requires us to continue to struggle and thoroughly expose the mysteries of nature. Mastering these mysteries will benefit mankind in the future. -Aurio Curie.

Only the happiness of all mankind is your happiness. -Dietzgen

If happiness lies in physical pleasure, it should be said that cows are happy when they find forage to eat. Heraclitus

If one day, I can contribute to our public interests, I will consider myself the happiest person in the world. Nicola Nikolai Gogol

Personal pain and happiness must be integrated into the pain and happiness of the times. —— Ai Qing

There are thousands of luxury houses in Ande, which makes all the poor people in the world very happy. -Du Fu

A person with lofty ideals will feel happy even in the most difficult times. -Xu Teli

Of course, a writer must earn money for living and writing, but he should never live and write for making money. Marx

Blessed are those who have nothing, because they will get everything! -romain rolland

When you are happy, don't lose the virtue that makes you happy. Mo Luoa

Happiness, if it only belongs to me, the property of one of thousands of people, then get out of here quickly! -belinsky

No matter how hard it is, the struggle for happiness is not a kind of pain, but happiness, not a tragedy, but just a play. Chernyshevski

Happiness based on the suffering of others is not true happiness. Huh? Babayeva

It is a myth to want to be happy without paying any price. -Xu Teli