Aristotle defined citizenship through the lens of active political participation. He argued that only free, adult males who possessed property and had the leisure time to engage in the governance of the polis were qualified for citizenship. This excluded women, slaves, and foreign residents, as he believed they lacked the necessary independence and rational capacity for political deliberation required in the ideal state.

Aristotle was born in 384 BCE in the city of Stagira, a Greek colony located on the Chalcidice peninsula. Because of his birthplace, he is frequently referred to as 'the Stagirite' in historical and philosophical texts, a title that distinguishes him from other Athenian philosophers and highlights his origins in the northern periphery of the Greek world.

Historical records indicate that Aristotle married once. His wife was Pythias, who was the niece and adopted daughter of his mentor, Hermias of Atarneus. After her death, he lived with Herpyllis, with whom he had a son named Nicomachus, but they were not legally married.

Aristotle joined Plato's Academy in Athens at the age of 17 and remained there for approximately twenty years until Plato's death. He is widely recognized as Plato's most famous and influential student, eventually developing his own philosophical system that diverged from his teacher's idealism.

Ancient Greek city-states, or poleis, were characterized by their autonomy and independence. Unlike modern nation-states or large empires, they lacked a centralized political unity, often operating as distinct, sovereign entities that frequently competed with one another for regional dominance and resources.

During his long tenure at Plato's Academy, Aristotle adopted the literary and pedagogical style of his teacher. Plato famously used dialogues to explore philosophical inquiries. Aristotle's early works were written in this same tradition before he eventually shifted toward the more systematic, lecture-based treatise style for which his later works are known.

While Aristotle was a pioneer in biological classification and observation, the specific botanical distinction between monocotyledons and dicotyledons was not part of his work. This classification system was developed much later in the history of botany. Aristotle did, however, conduct extensive research into animal anatomy, marine biology, and embryology, which formed the basis of his biological treatises.

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Aristotle posits that the city-state (polis) is the ultimate form of human association. Unlike the family or the village, which satisfy basic biological and daily needs, the city-state is self-sufficient and exists for the sake of the 'good life,' allowing citizens to achieve their full potential and exercise virtue within a structured political community.

Aristotle founded the Lyceum in 335 BCE after returning to Athens. It was located in a grove dedicated to Apollo Lyceus. Unlike Plato's Academy, which focused heavily on mathematics and abstract philosophy, the Lyceum became famous for its empirical research, systematic classification of knowledge, and the 'peripatetic' style of teaching, where students and teachers walked while discussing philosophy, science, and politics.