Mathematics is a universal language that transcends cultural and linguistic barriers.
你唯一的限制就是你相信的限制。
中心地的规模和分布并非偶然,而是遵循一定的规律。
Nature is the most subtle artist of all.
We can distinguish the blurred shapes and colours we see at a distance only because of the capacities of our eyes.
Nothing spoils a romance so much as sense of humour in the woman—or the want of it in the man.