Genius only means hard-working all one's life. (Russian chemist Mendeleev)

I have nothing to offer but blood, toil, tears and sweat. (Churchill, British statesman)

I have nothing to offer but blood, toil, tears and sweat. (Churchill, British statesman)

People make mistakes as long as they struggle. (Goethe, German poet and playwright)

People make mistakes as long as they struggle. (Goethe, German poet and playwright)

My fellow Americans, ask not what your country can do for you; Ask what you can do for your country. My fellow citizens of the world; Ask not what America will do for you, but what we can do together for the freedom of mankind. (American President Kennedy)

My fellow Americans, ask not what your country can do for you, but what you can do for your country. My fellow citizens of the world, ask not what America will do for you, but what we can do together for the freedom of mankind. (American President Kennedy)

Our destiny offers us not the cup of despair, but the chalice of opportunity. (Richard Nixon, American President)

Our destiny offers us not the cup of despair, but the chalice of opportunity. (Richard Nixon, American President)

Patience is bitter, but its fruit is sweet. (jean jacques Rousseaux, French thinker)

Patience is bitter, but its fruit is sweet. (Rousseau, French thinker)

Progress is today's activity and tomorrow's guarantee.

(Emerson, American thinker)

Progress is today's activity and tomorrow's guarantee. (Emerson, American thinker)

Human beings can change the world through hard work, and this kind of hard work can make human beings reach a new and better realm. No one can cut off the bond that connects him with society just by looking away. He must always accept and be sensitive to new things; And have enough courage and skills to face new facts and deal with them. (Franklin Roosevelt, American President)

People can change the world through hard work, and this kind of hard work can make mankind reach a new and better realm. No one can cut off his contact with society just by closing his eyes and not looking at social reality. He must be sensitive and ready to accept new things; He must have the courage and ability to face new facts and solve new problems. (Franklin Roosevelt, American President)

There is no royal road to science,and only those who do not dread the fatiguing climb of gaining its numinous summits. (German revolutionary Marx)

There is no royal road to science,and only those who do not dread the fatiguing climb of gaining its numinous summits. (German revolutionary Marx)

The man who has made up his mind to win will never say "impossible".

(Bonaparte Napoleon, French emperor)

The man who has made up his mind to win will never say "impossible". (Napoleon, French emperor)

Do everything possible to protect this last and greatest bastion of freedom. (Ronald Reagan, American President)

Do everything possible to protect this last and greatest bastion of freedom. (Ronald Reagan, American President)

We can't always create the future for our youth, but we can train our youth for the future. (Franklin Roosevelt, American President)

We can't always create a bright future for our youth, but we can create our younger generation for the future. (Franklin Roosevelt, American President)

Where there is a will, there is a way. (Thomas Edison, American inventor)

Where there is a will, there is a way. (Thomas Edison, American inventor)