Natural selection is the only known natural process that can build functional complexity.
The known is finite, the unknown infinite; intellectually we stand on an islet in the midst of an illimitable ocean of inexplicability.  
The best time to plant a tree was 20 years ago; the second best time is now.
The more you praise and celebrate your life, the more there is in life to celebrate.
最成功的品牌是那些代表比自身更宏大意义的品牌。