statue of socrates, the philosopher, with sky in distance - philosopher stock pictures, royalty-free photos & images
adult man with beard in medieval costume thinking for inspiration - philosopher stock pictures, royalty-free photos & images
old engraved illustration of virgil, horace and varius at the house of maecenas - philosopher stock pictures, royalty-free photos & images
age of reformation, the humanists sitting together in thoughts and discussions - philosopher stock illustrations
the school of athens. detail of a mural by raphael painted for pope julius ii - in the center plato (leonardo da vinci) discourses with aristotle. 1509. raphaël. room of the segnatura. vatican museum. - philosopher stock pictures, royalty-free photos & images
astronomer writing on parchment with feather pen - philosopher stock pictures, royalty-free photos & images
paul preaches in athens (acts 17), wood engraving, published in 1860 - philosopher stock illustrations
aristotle (384 bc - 322 bc), classical greek philosopher. he is one of the most famous and influential philosophers of history - philosopher stock illustrations
Simone Weil french philosopher, here in 1936 during spanish civil war when she was in the Durruti Column
Circa 410 BC, The Greek philosopher Socrates teaches his doctrines to the young Athenians whilst awaiting his execution. Original Artwork: An...
'School of Athens', c1510. Fresco showing Greek philosphers and scientists with Plato and his pupil Aristotle in the centre.
a statue of an old man thinking with a bird on his head - philosopher stock pictures, royalty-free photos & images
socrates (469 bc-399 bc), greek philosopher, lithograph, published in 1882( - philosopher stock illustrations
old engraved illustration of virgil, horace and varius at the house of maecenas - philosopher stock pictures, royalty-free photos & images
famous greek poets and philosophers, wood engraving, published in 1880 - philosopher stock illustrations
ancient greece sculpture of diogenes - greek philosopher, founder of cynicism - philosopher stock pictures, royalty-free photos & images
karl marx (1818-1883), german philosopher, wood engraving, published in 1893 - philosopher stock illustrations
old engraved illustration of death of socrates, socrates drinking the hemlock - philosopher stock pictures, royalty-free photos & images
equestrian bronze statue of marcus aurelius - philosopher stock pictures, royalty-free photos & images
old engraved illustration of theological disputation originally between andreas karlstadt, martin luther and johann eck - philosopher stock pictures, royalty-free photos & images
old engraved illustration of diogenes of sinope sitting in his tub - philosopher stock pictures, royalty-free photos & images
ancient greece sculpture of diogenes - greek philosopher, founder of cynicism - philosopher stock pictures, royalty-free photos & images