Nicola Tesla December 7, 2015December 7, 2015 / A Pondering Mind “One must be sane to think clearly, but one can think deeply and be quite insane.” – Nikola Tesla http://www.bquot.es/s/702 Share this:Click to email this to a friend (Opens in new window)Click to share on Pocket (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Related