There can be no effect without its cause, and every cause must produce its effect.

They are in fact not two but one, for the effect is really part of the cause, and he who sets one in motion sets the other also.

There is in Nature no such idea as that of reward or punishment, but only of cause and effect.

Anyone can see this in connection with mechanics or chemistry; the clairvoyant sees it equally clearly with regard to the problems of evolution.

The same law obtains in the higher as in the lower worlds; there, as here, the angle of reflection is always equal to the angle of incidence.