1. Those who want to act as wise men among fools are actually fools among wise men. ——[Ancient Rome] Quintilian: "Principles of Speech"

Introduction Quintilian (about 35-about 100 years) was a famous lawyer, educator and the first royal appointee in ancient Rome. Professor of rhetoric and the most accomplished educator in Rome in the 1st century AD. He was born in Spain, and his father taught eloquence in Rome and was quite famous. Quintilian went to Rome with his father to study when he was young, and received an education in eloquence.

2. The wisest are those who, like Socrates, think their own wisdom is insignificant. ——[Ancient Greece] Plato: "The Apology of Socrates"

Introduction Plato (427 BC - 347 BC) was a great philosopher in ancient Greece and the greatest in Western culture. One of the philosophers and thinkers. Plato was a famous ancient Greek philosopher who wrote many works and founded the famous Academy in Athens. He was a student of Socrates and a teacher of Aristotle, the three of whom are considered the founders of Western philosophy.

3. Foolish people face dangerous pursuits, but smart people resist various attacks. ——[Ancient Rome] Seneca: "Collected Letters to Luciliu"

Introduction to Seneca, about 4-65 BC, an ancient Roman statesman and Stoic philosopher , tragedy writer, orator. He entered officialdom during the period of Tiberius and served as the imperial accountant and senator of the Senate. He later served as consul of judicial affairs and tutor and advisor to Emperor Nero. Throughout his life, he had many brushes with death during the reigns of the three heads of the Claudian dynasty in the ancient Roman Empire.

4. Ignorance is still dissatisfied even if all its wishes are realized; wisdom enjoys the present and will never be dissatisfied with itself. ——[Ancient Rome] Cicero, quoted from Montaigne: "Essays on Life"

Introduction to Marcus Tullius Cicero (January 3, 106 BC - 43 BC) December 7), a famous politician, orator, orator, jurist and philosopher in ancient Rome. He worked as a lawyer and later entered politics. In the beginning, they tended to be the civilian faction, and later became the aristocratic faction.

5. Foolish people always yearn for things that are not in front of them, but belittle the things in front of them, even if those things are more beneficial to them than those things in the past. ——[Ancient Greece] Democritus: "Fragments of Works"

Introduction Democritus (about 460 BC to 370 BC) was born in Abdera on the coast of Thrace. A commercial city, a great materialist philosopher in ancient Greece and one of the founders of atomic materialism. He wrote "Order of the Small Universe", "On Nature", "On Life", etc., but only fragments have been handed down to the world.