| HYPATIA | Ancient philosopher and mathematician famed for her lectures in Alexandria |
| FERMAT | Mathematician famed for his 'last theorem' |
| AROOMOFONES | ___ Own writer Virginia Woolf's extended essay based on her lectures delivered at Cambridge University: 4 wds. |
| RUSSELL | Bertrand ___, British philosopher and mathematician who was awarded the Nobel prize in literature in 1950 |
| PYTHAGORAS | Ancient Greek philosopher and mathematician (10) |
| ZENO | Greek philosopher and mathematician noted for his paradoxes (4) |
| LEIBNIZ | Gottfried, German philosopher and mathematician born in 1646 (7) |
| PUTNAM | Hilary ***** US philosopher and mathematician born in 1926 (6) |
| RENEDESCARTES | French philosopher and mathematician born 1596, best known for the statement: "I think, therefore I am" (4,9) |
| ISAACNEWTON | English philosopher and mathematician (1642-1727) who formulated the law of gravitation: 2 wds. |
| DESCARTES | Rene ---, 17th Century French philosopher and mathematician who wrote Discourse On The Method (9) |
| BERTRANDRUSSELL | English philosopher and mathematician, 1872-1970 (8,7) |
| HOURGLASSES | Time-keeping devices thought to have been invented in Alexandria in the 3rd century |
| PTOLEMY | Astronomer who died in Alexandria in AD 170 (7) |
| SHARIF | Egyptian actor born Michel Demitri Shalhoub in Alexandria in 1932 (6) |
| RACECOURSE | Run series of lectures in Epsom, for example (10) |
| FINALE | Climax in brief in Alexandria (6) |
| STOIC | For second time, got round in charge of ancient philosopher (5) |
| ATOMS | What ancient philosophers believed were infinite in number and moved in an endless void |
| LEIBNITZ | German philosopher and mathematician |