Propostion 32. - «If a body B is surrounded on all sides by particles in motion, which at the same time are impelling it with equal force in all directions, as long as no other cause occurs it will remain unmoved in the same place.»

Proof. - «This proposition is self-evident. For if it were to move in any direction through the impulse of particles coming from one direction, the particles that move it would be impelling it with greater force than other particles that at the same time are impelling it in the opposite direction, with no effect [ ]. This would be contrary to the hypothesis.»


Spinoza, Principles of Cartesian Philosophy