I think frugality drives innovation， just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.

爱我的，我报以叹息。恨我的，我付之一笑。任上天降下什么运气，这颗心全已准备好。

All that we see or seem is but a dream within a dream.

True progress comes when industry and environmentalists work together, not against each other.

是印度给了我们表达所有数字的巧妙方法，每个符号都有一个位置值和一个绝对值。