When I look at the world I'm pessimistic, but when I look at people I am optimistic.

历史不是过去。它是我们进化出来的组织我们对过去无知的方法。

If history were taught in the form of stories, it would never be forgotten.

And we also suck in messages from everything from the television, to advertising, to marketing, etc. These are hugely powerful forces that define what we want and how we view ourselves. When we're told that banking is a very respectable profession, a lot of us want to go into banking. When banking is no longer so respectable, we lose interest in banking. We are highly open to suggestion.

In India, we have a saying: 'The rooster coop is full of chickens who don't realize they're in a cage.'

Topology is the study of the properties of a figure that are unchanged by any deformation.

世界充满了神奇的事物，耐心地等待着我们的感官变得更加敏锐。

"The poem is not a closed field, but an open one."