I am ready to meet my Maker. Whether my Maker is prepared for the great ordeal of meeting me is another matter. (Sir Winston Churchill)

Each problem that I solved became a rule which served afterwards to solve other problems. (Rene Descartes, Discours de la Methode)

It is much more comfortable to be mad and know it, than to be sane and have one’s doubts. (G. B. Burgin)

His ignorance is encyclopedic (Abba Eban)