Arrogance is a great obstruction to wisdom.
It is too often forgotten that the gift of speech, so centrally employed, has been elaborated as much for the purpose of concealing thought by dissimulation and lying as for the purpose of elucidating and communicating thought.
The road to Hades is easy to travel.
We ought not to heap reproaches on old age, seeing that we all hope to reach it.
To be unable to bear an ill is itself a great ill.
If a new result is to have any value, it must unite elements long since known, but till then scattered and seemingly foreign to each other, and suddenly introduce order where the appearance of disorder reigned.