Activity
Some are very busy, and yet do nothing Thomas Fuller
Happiness [is] an effect and knowledge a mere instrument of successful activity Bertrand Russell
Activity is contagious Ralph Waldo Emerson
Be doing always something, that the Devil catch thee not at leisure Thomas Fuller
I multiplied myself by my activity Napoleon
It's wonderful what we can do if we're always moving George Washington
There is nothing, not even crime, more opposed to poetry, to philosophy, ay, to life itself, than this incessant business Henry David Thoreau