Free PDF: The Genius Workout — 50 brain teasers + the 25 highest IQs in history.
Blog

Demosthenes: Biography, Achievements & Lasting Legacy

Demosthenes (; Greek: Δημοσθένης, romanized: Dēmosthénēs; Attic Greek: [dɛːmostʰénɛːs]; 384 – 12 October 322 BC) was a Greek statesman and orator in ancient Athens. His orations constitute a significant expression of contemporary Athenian intellectual prowess and provide insight into the politics and culture of ancient Greece during the 4th century BC. Demosthenes learned rhetoric by studying the speeches of previous great orators. He delivered his first judicial speeches at the age of 20, in which he successfully argued that he should gain from his guardians what was left of his inheritance. For a time, Demosthenes made his living as a professional speechwriter (logographer) and a lawyer, writing speeches for use in private legal suits.

Demosthenes grew interested in politics during his time as a logographer, and in 354 BC he gave his first public political speeches. He went on to devote his most productive years to opposing Macedon's expansion. He idealized his city and strove throughout his life to restore Athens's supremacy and motivate his compatriots against Philip II of Macedon. He sought to preserve his city's freedom and to establish an alliance against Macedon, in an unsuccessful attempt to impede Philip's plans to expand his influence southward, conquering the Greek states.

Life and Career

After Philip's death, Demosthenes played a leading part in his city's uprising against the new king of Macedonia, Alexander the Great. However, his efforts failed, and the revolt was met with a harsh Macedonian reaction. To prevent a similar revolt against his own rule, Alexander's successor in this region, Antipater, sent his men to track Demosthenes down. Demosthenes killed himself to avoid being arrested by Archias of Thurii, Antipater's confidant.

The Alexandrian Canon, compiled by Aristophanes of Byzantium and Aristarchus of Samothrace, called Demosthenes one of the ten greatest Attic orators and logographers. Longinus likened Demosthenes to a blazing thunderbolt and argued that he had "perfected to the utmost the tone of lofty speech, living passions, copiousness, readiness, speed." Quintilian extolled him as lex orandi ("the standard of oratory"). Cicero said of him that inter omnis unus excellat ("among them all, he excels alone"), and also praised him as "the perfect orator" who lacked nothing.

Key Facts

Legacy and Impact

The influence of Demosthenes extends far beyond his own lifetime. He fundamentally shaped governance and political thought, and his leadership and political achievements remain foundational to this day.

Though he passed away in 322, his ideas continue to be studied, debated, and built upon by scholars and practitioners worldwide.

Demosthenes remains one of the most celebrated minds to emerge from Greece, a testament to the rich intellectual heritage of the region.

Notable Geniuses from Greece

Greece has produced many remarkable minds. Alongside Demosthenes:

View all geniuses from Greece →

Discover more brilliant minds in Politics

Explore Politics Geniuses

Explore More

Read the full profile of Demosthenes

View Demosthenes's Profile →

Explore more geniuses

1,300+ articles · 1,300+ biographies · English

Browse all

Trending Comparisons

Albert Einstein vs Isaac NewtonLeonardo Da Vinci vs Nikola TeslaMarie Curie vs Stephen HawkingAda Lovelace vs Alan TuringBobby Fischer vs John Von Neumann

Top IQ Rankings

Highest IQ in HistorySmartest People Alive TodayHighest IQ Child ProdigiesGreatest PhysicistsGreatest Mathematicians

Child prodigies

Gregory SmithMacaulay CulkinRay UshikuboWilliam Maillis
Child prodigies →Highest IQ child prodigies →

Play & come back tomorrow

🔥 Daily Genius Challenge · Genius trivia
Whose brain was removed and studied for decades after death?
🧠 Which Genius Are You?📊 Free IQ Test