It is better to conceal ignorance than to expose it.

What we have caught and what we have killed we have left behind, but what has escaped us we bring with us.

Many who have learned from Hesiod the countless names of gods and monsters never understand that night and day are one

Things of which there is sight, hearing, apprehension, these I prefer.

The only thing that is constant is change.

Those unmindful when they hear, for all they make of their intelligence, may be regarded as the walking dead.

Dogs, also, bark at what they do not know.