Give thy thoughts no tongue, Nor any unproportiond thought his act. Be thou familiar, but by no means vulgar. The friends thou hast, and their adoption tried, Grapple them to thy soul with hoops of steel: But do not dull thy palm with entertainment Of each new-hatchd, unfledged comrade. Shakespeare.Hamlet, Act I. Scene 3. (Polonius to Laertes.)
Whoso keepeth his mouth and his tongue, keepeth his soul from troubles. Proverbs of Solomon, Chap. xx. Ver. 23; And in her tongue is the law of kindness, Chap. xxxi. Ver. 26.
Speech is like cloth of Arras opened and put abroad, whereby the imagery doth appear in figure; whereas in thoughts they lie but as in packs. Plutarch.Life of Themistocles, 28.
From this time forth My thoughts be bloody, or be nothing worth! Shakespeare.Hamlet, Act IV. Scene 4. (Hamlet alone, after his interview with Rosencrantz and Guildenstern.)
Thanks to the human heart by which we live, Thanks to its tenderness, its joys, and fears; To me the meanest flower that blows can give Thoughts that do often lie too deep for tears. Wordsworth.Ode, Vol. V. Page 345, Last four Lines.
Fancy light from fancy caught, And thought leapt out to wed with thought, Ere thought could wed itself with speech. Tennyson.In Memoriam, 23, Verse 4.