Although there are many sufferings in the world, they can always be overcome (Helen Keller, American writer)

Take pleasure in hope and remain tenacious in suffering. (John F. Kennedy, American President)

Disasters are like knives. Grasping the handle will serve us, while grasping the blade will cut our hands. (Lowell J R, American poetess and critic)

I have been crying since I was born, and every day shows the reason why I cry. (Jack London, American novelist)

Go to happiness through suffering. (Beethoven)

A strong-willed optimist thinks about problems with the philosophy of "nothing is difficult in the world". The more he is hit by tragedy, the stronger he is. (Seneca, ancient Roman philosopher)

Adversity is a path to truth. (Byron)

Suffering is the teacher of life. {Balzac)

The exploitation of the mineral deposits of human intelligence is inevitably facilitated by adversity. (Dumas)

Unfortunately, it is the best university. (belinsky)

No wise man will deny the exercise value of pain and sorrow. (Huxley)

Genius inevitably has obstacles, because obstacles create genius. (romain rolland)

A calm lake doesn't make a sharp sailor; Comfortable environment can't make a great man of the times (Lebedev)

The harder my life is, the stronger and even smarter I feel. {Gorky)

People's life is like a flood, and it is difficult to drive beautiful waves without encountering islands and reefs. (ostrovsky)

No great cause can be achieved without great difficulties. (Voltaire)