At all events it is certain that I seem to see light, hear a noise, and feel heat; this cannot be false, and this is what in me is properly called perceiving, which is nothing else than thinking. From this I begin to know what I am with somewhat greater clearness and distinctness than heretofore.


Meditations on First Philosophy (1641)


At all events it is certain that I seem to see light, hear a noise, and feel heat; this cannot be false, and this is what in me is properly called...

At all events it is certain that I seem to see light, hear a noise, and feel heat; this cannot be false, and this is what in me is properly called...

At all events it is certain that I seem to see light, hear a noise, and feel heat; this cannot be false, and this is what in me is properly called...

At all events it is certain that I seem to see light, hear a noise, and feel heat; this cannot be false, and this is what in me is properly called...