Don't play games that you don't understand, even if you see lots of other people making money from them.


Delivering Happiness: A Path to Profits, Passion, and Purpose (ed. Grand Central Publishing, 2010) - ISBN: 9780446576314


Don't play games that you don't understand, even if you see lots of other people making money from them.

Don't play games that you don't understand, even if you see lots of other people making money from them.

Don't play games that you don't understand, even if you see lots of other people making money from them.

Don't play games that you don't understand, even if you see lots of other people making money from them.