A simple picture 隻是片麵,難以概括

Sometimes, complicated thing can be simplified, like  Einstein's formula

所有跟帖： 

• may or may not, here is why, -善和- ♀ (127 bytes) () 06/24/2013 postreply 19:12:12

• Very good, my random sketch sometimes become stock market barome -走馬讀人- ♂ (24 bytes) () 06/24/2013 postreply 20:41:40

• 走馬老師， -善和- ♀ (319 bytes) () 06/24/2013 postreply 21:21:56