Where does the phrase "since you have chosen a distant place, you only care about hardships" come from?

I. Selected from Wang Guozhen's Love Life:

I don't think about whether I can succeed or not.

Now that I have chosen a distant place,

I only care about the hardships.

I don't think about whether I can win love.

Because I like roses,

Just show your sincerity bravely.

I don't think about whether there will be cold wind and rain behind me.

Because the target is the horizon.

Only the back is left to the world.

I don't think about whether the future is flat or muddy.

As long as you love life.

Everything is expected.

Wang Guozhen, born on June 22nd, 1956, is a contemporary poet and painter. 1982 graduated from the Chinese Department of Jinan University. 1984 published the first influential poem "I smile towards life". From 65438 to 0985, he concentrated his spare time on poetry creation, during which he published a doggerel A Day at School in China Youth Daily. From 65438 to 0990, Wang Guozhen worked as a columnist for Liaoning youth, China youth and girlfriend, which set off a "Wang Guozhen fever". Since 2005, his calligraphy works have been presented as gifts to foreign political parties and state leaders for the central leading comrades to visit. In 2005, he served as the director of the Literary Creation Center of China Academy of Fine Arts. ..