The bibliography must have at least four sources one of which should be a book.

The bibliography must have at least four sources one of which should be a book. Encyclopedias are not cited in the paper. No non-academic website source cited. 
Hits on almost all content. MEMORABLE 
The paper is at least 5 pages long. The paper includes some biographical information (at the most 1 page) and analyzes one or at the most two of a philosopher’s major ideas/works and assess his/her contribution to the philosophical tradition and their impact today
SUGGESTED TOPICS
Thales (ca. 580 B.C.E.) Or Pre-Socratics as a group
Pythagoras (ca. 572- 500 B.C.E.)​​​Zeno (ca. 490 B.C.E.)
Socrates (469-399 B.C.E)​​​​Plato (427-347 B.C.E.); Aristocles
Aristotle (384-322 B.C.E.)​​​​Diogenes (412 or 404-323 B.C.E.)
Epicurus (341-270 B.C.E.)​​​​Zeno of Cyprus (334-262 B.C.E.)