-
Science is practical philosophy.
-
I accept no principles of physics which are not also accepted in mathematics.
-
...it is certain that I am really distinct from my body, and can exist without it.
-
Intuition is the undoubting conception of a pure and attentive mind, which arises from the light of reason alone, and is more certain than deduction.
-
Thus each truth discovered was a rule available in the discovery of subsequent ones.
-
For each of us there is a set limit to our intellectual powers which we cannot pass.
-
How do we know that anything really exists, that anything is really the way it seems ot us through our senses?
-
We call infinite that thing whose limits we have not perceived, and so by that word we do not signify what we understand about a thing, but rather what we do not understand.