I never think about the past. I always look forward to the next challenge.

旅行就是用双脚写作。

出自汉·桓宽《盐铁论·疾贪》。贪婪卑鄙的风气源自处于上位的统治者，而不在下层民众；对民众的教育、对国民素质的改良在于执政者的措施是否得当，而不在于人民自身的素质。

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

The laws of physics are the same in every corner of the universe.