Give me extension and motion and I will construct the universe.

...it is certain that I am really distinct from my body, and can exist without it.

Your joy is your sorrow unmasked. And the self-same well from which your laughter rises was often-times filled with your tears.

Just as we believe by faith that the greatest happiness of the next life consists simply in the contemplation of this divine majesty, likewise we experience that we derive the greatest joy of which we are capable in this life from the same contemplation, even though it is much less perfect.

To live without philosophizing is in truth the same as keeping the eyes closed without attempting to open them.

If ... it is not in my power to arrive at the knowledge of any truth, I may at least do what is in my power, namely, suspend judgement.

I experienced in myself a certain capacity for judging which I have doubtless received from God, like all the other things that I possess; and as He could not desire to deceive me, it is clear that He has not given me a faculty that will lead me to err if I use it aright.