Every increase in your knowledge is a simultaneous decrease. You learn and you unlearn at the same time. A new certainty is a new doubt as well.
I would rather be ignorant than knowledgeable of evils.
The privileges of knowledge have to be bought at the cost of the consolations of ignorance.
-ev'n with us the breath Of Science dims the mirror of our joy.
You have learnt something. That always feels at first as if you had lost something.
The mind, like all other things, will become impaired, the sciences are its food,--they nourish, but at the same time they consume it.
