It is best not to go on for great quest for truth , it will only make you miserable

In the matter of a difficult question it is more likely that the truth should have been discovered by the few than by the many.

I desire to live in peace and to continue the life I have begun under the motto 'to live well you must live unseen

The rainbow is such a remarkable phenomenon of nature, and its cause has been so meticulously sought after by inquiring minds throughout the ages, that I could not choose a more appropriate subject for demonstrating how, with the method I am using, we can arrive at knowledge not possessed at all by those whose writings are available to us.

I can doubt everything, except one thing, and that is the very fact that I doubt. Simply put - I think, therefore I am

Human wisdom remains always one and the same although applied to the most diverse objects and it is no more changed by their diversity than the sunshine is changed by the variety of objects which it illuminates.

There is nothing more ancient than the truth.