It is wise to be silent when occasion requires, and better than to speak, though never so well.
PlutarchHe (Cato) never gave his opinion in the Senate upon any other point whatever, without adding these words, "And, in my opinion Carthage should be destroyed." ["Delenda est Carthago."]
PlutarchNature without learning is like a blind man; learning without Nature, like a maimed one; practice without both, incomplete. As in agriculture a good soil is first sought for, then a skilful husbandman, and then good seed; in the same way nature corresponds to the soil, the teacher to the husbandman, precepts and instruction to the seed.
Plutarch