The old dreams were very good dreams; they didn't work out, but I'm glad I had them.
The next green revolution must be both productive and environmentally responsible.
The greatest hazard of all, losing one’s self, can occur very quietly in the world, as if it were nothing at all.
Cada libro es un mundo por descubrir, lleno de sorpresas y enseñanzas.
在商业中,就像在生活中一样,诚信是唯一不会贬值的货币。