For the mind does not require filling like a bottle, but rather, like wood, it only requires kindling to create in it an impulse to think independently and an ardent desire for the truth.
PlutarchAntisthenes says that in a certain faraway land the cold is so intense that words freeze as soon as they are uttered, and after some time then thaw and become audible, so that words spoken in winter go unheard until the next summer.
Plutarch