"To waste, to destroy our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by right to hand down to them amplified and developed."  

Ridicule, says Frank, was one of his greatest weapons in Congress. The retired Massachusetts congressman shares how humor can help win friends and arguments.

The acclaimed self-help expert recently visited Big Think to discuss his new book and share stories about what wealth and generosity mean to him.

"Life is like playing a violin solo in public and learning the instrument as one goes on."

Businesswoman and investor Barbara Corcoran shares her tips on amassing social capital by way of branding. This is the first video in a helpful Corcoran playlist focused on guiding small business owners and emerging entrepreneurs.

Joseph Joubert was a French essayist whose collected works were not published until after his death in 1824.

"Discrimination still exists. Some people feel that their own beliefs are being threatened. Some are unhappy about unfamiliar cultures. They all need to be reassured that there is so much to be gained by reaching out to others; that diversity is indeed a strength and not a threat."