To write history is to wrestle with ghosts.

"What good is the warmth of summer, without the cold of winter to give it sweetness."

Sir, where are you running? Are you doing this for world peace? Are you doing this for the homeless? Are you running for women's rights? The environment? They just couldn't believe that somebody would do all that running for no particular reason. Why are you doing this? I just felt like running. I just felt like running.

善恶之间的界限常常是模糊的。

The scientific community must work together to address global challenges.

Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.