There is little in the architecture of a city that is more beautifully designed than a tree.

Many cities end up putting off things because they want to understand everything. They don't understand that innovating is about starting. Taking care of a city is a process that you start, and then give the population space to respond.

A car is like a mother-in-law - if you let it, it will rule your life.

We have to change from 'ego-architecture' to 'eco-architecture.'

I always run into these Ph.D.s. They write and write and write about sustainable development. Then these guys ask me, 'But, how do you do it?' They are scared to death to do anything.

If you provide good alternatives for public transport, you won't have traffic problems.

We can’t have landfills forever and we can’t ask others to accept our trash.