When I see, for instance, a Billiard-ball moving in a straight line towards another; even suppose motion in the second ball should by accident be suggested to me, as the result of their contact or impulse;
Bilar-bola bat beste baterantz marra zuzenean doala ikustean, bigarren bolaren mugimendua ukitzen edo sakada baten ondoriotzat akzidentez sujeritzen bazait ere, ez ote dut bururatu ahal beste halako ehun gertaera berdin sor litezkeela kausa hartatik?