4. "The dog has seldom been successful in pulling man up to its level of sagacity, but man has frequently dragged the dog down to his."
- Quote by James Thurber
5. "It is only with prudence, sagacity, and much dexterity that great aims are accomplished, and all obstacles surmounted. Otherwise nothing is accomplished."
- Quote by Napoléon Bonaparte
6. "Old men want to feel that the experience which has come with their years is valuable, that their advice is valuable, that they possess a sagacity that could be obtained only through experience— a sagacity that could be of use to young men if only young men would ask."
- Robert A. Caro, Master of the Senate
7. "The Sage accords with it and models himself on Heaven and Earth. Thus when the realm is well ordered, his benevolence and sagacity are hidden. When All under Heaven are in turbulence, his benevolence and sagacity flourish. This is the true Tao."
- Ralph D. Sawyer, The Seven Military Classics Of Ancient China
8. "Another form on sagacity and self-defence consists in reacting as seldom as possible and withdrawing from situations and relationships in which one would be condemned as it were to suspend ones 'freedom', ones initiative, and become a mere reagent."
- Friedrich Nietzsche, Ecce Homo
9. "The conduct of the criminal investigation has been left in the experienced hands of Inspector Lestrade, of Scotland Yard, who is following up the clues with his accustomed energy and sagacity."
- Arthur Conan Doyle, The Complete Sherlock Holmes