Science sans conscience n' est que le ruine de l'âme. Knowledge without conscience is but the ruine of the soule.
There are more old drunkards than old physicians.
I've often heard it said, as the common proverb goes, that a fool can teach a wise man well.
Oh how unhappy is the prince served by such men who are so easily corrupted.
I do not drink more than a sponge.
There is no truer cause of unhappiness amongst men than, where naturally expecting charity and benevolence, they receive harm and vexation.