Related:

• Knowledge is like a river ... The deeper it is, the less noise it makes.
• Do not push the river, it will flow by itself. Polish Proverb
• Time is like a river, flowing endlessly through the universe.
  And if you poled your flatboat in that river, you might fight your way against the current and travel upstream into the past....
• Every great decision creates ripples--like a huge boulder dropped in a lake.
  The ripples merge, rebound off the banks in unforseeable ways....
• boulder: place close to the ground to practice falling.
  when climbers aren't climbing, they like to sharpen their skills by bouldering on large rocks located in places frequented by impressionable tourists....
• Just go with the flow control, roll with the crunches, and, when you get a prompt, type like hell.
• The vanity of human life is like a river, constantly passing away, and yet constantly coming on.
  -- Alexander Pope...