For attacking the solid and strong, nothing is better than water.

 

 "Under heaven nothing is more soft and yielding than water.

 "Yet for attacking the solid and strong, nothing is better; it has no equal.

"The weak can overcome the strong; the supple can overcome the stiff. Under heaven everyone knows this, yet no one puts it into practice."

Lao Tsu,
6th century B.C.E., China

Photos: Waterfalls, Rocky Mountain National Park, CO; September 8 and 15, 2014