A quote
Words should be scattered like seed; no matter how small the seed may be, if it has once found favourable ground, it unfolds its strength and from an insignificant thing spreads to its greatest growth. Reason grows in the same way; it is not large to the outward view, but increases as it does its work. Few words are spoken; but if the mind has truly caught them, they come into their strength and spring up. Yes, precepts and seeds have the same quality; they produce much, and yet they are slight things. Only, as I said, let a favourable mind receive and assimilate them. Then of itself the mind also will produce bounteously in its turn, giving back more than it has received. Farewell.
Seneca·Letter 38 — On Quiet Conversation (§2)·trans. Gummere