"I could have made money this way, and perhaps amused myself writing code. But I knew that at the end of my career, I would look back on years of building walls to divide people, and feel I had spent my life making the world a worse place."

"I'm undaunted in my quest to amuse myself by constantly changing my hair."

"Information, education, skills, healthcare, livelihood, financial inclusion, small and village enterprises, opportunities for women, conservation of natural resources, distributed clean energy - entirely new possibilities have emerged to change the development model."

"You must be the change you wish to see in the world."

"Friendship is certainly the finest balm for the pangs of disappointed love."

"How wonderful, how very wonderful the operations of time, and the changes of the human mind!"