Knowledge is indivisible. When people grow wise in one direction, they are sure to make it easier for themselves to grow wise in other directions as well. On the other hand, when they split up knowledge, concentrate on their own field, and scorn and ignore other fields, they grow less wise — even in their own field.
Give not thy tongue too great a liberty, lest it take thee prisoner. A word unspoken is like thy sword in thy scabbard; if vented, the sword is in another’s hand. If thou desire to be held wise, be so wise as to hold thy tongue.
Let no man think lightly of good, saying in his heart, It will not benefit me. Even by the falling of water drops a water-pot is filled; the wise man becomes full of good, even if he gather it little by little.