Let whoever can do so deceive me, he will never bring it about that I am nothing, so long as I continue to think I am something.

Truths are more likely to be discovered by one man than by a nation

I am indeed amazed when I consider how weak my mind is and how prone to error.

For I found myself embarrassed with so many doubts and errors that it seemed to me that the effort to instruct myself had no effect other than th eincreasing discovery of my own ignorance

The chief cause of human errors is to be found in the prejudices picked up in childhood.

Even those who have the weakest souls could acquire absolute mastery over all their passions if we employed sufficient ingenuity in training and guiding them.

I was convinced that our beliefs are based much more on custom and example than on any certain knowledge.