All Is To Be Doubted.

To Live Without Philosophizing Is In Truth The Same As Keeping The Eyes Closed Without Attempting To Open Them.

I Hope That Posterity Will Judge Me Kindly, Not Only As To The Things Which I Have Explained, But Also To Those Which I Have Intentionally Omitted So As To Leave To Others The Pleasure Of Discovery.

I Am Indeed Amazed When I Consider How Weak My Mind Is And How Prone To Error.

We Do Not Describe The World We See, We See The World We Can Describe.

He Lives Well Who Is Well Hidden.