The only way to learn mathematics is to do mathematics.
The true way to render ourselves happy is to love our work and find in it our pleasure.
A person needs to walk how many roads to become a real person.
你知道的越多，你看到的就越多。
Every building should be a teacher. It should teach us about light, about air, about how to live together.
The significance of a mental state lies in what it leads to.
The forest is a teacher—if we are willing to learn.