إذا كان هذا هو أفضل العوالم الممكنة، فكيف هي الاخرى ؟".

“The instruction we find in books is like fire. We fetch it from our neighbours,…”

“Work keeps at bay three great evils: boredom, vice, and need.”

“I have received your new book against the human race, and thank you for it. Nev…”

“It is best one should quote what one doesn't understand at all in the language …”