Stock Photos: white With beard

How do you like my classical style, huh?
Well, it's a cautionary tale...
Well, and what do you think about this thing?
Involved in thoughts old professor holding globus
This science decision is not my thing
Feeling quite serious when thinking about science
Old professor holding book and looks surprised
Quite contented with work result
Pensive mature man bitting his eyeglasses
Well, and what we're gonna do about that?
Mature professor looking confused
mature professor looking lost and mad
Mature man adjusting his eyglasses and looking lost
Mature professor adjusting his eyeglasses
Pleasant company and smart talks makes this evening
Pleasant company and smart talks makes this evening
I like to stay on top of things, you know
Surprised old professor holding globus and pointing on it
Old professor holding globus and seems bothered with something
Old professor holding globus and looking hugely distured with something
Serious looking old professor standing with his hands folded
Oh, how could you say it, it's my favorite book
Taking a closer look on places to visit
This subject needs a serious consideration
Mature man pointing up and looks like explaining something
Laughing mature professor holding his glasses
Excited mature professor adjusting eyeglasses
Serious looking mature professor standing with hands folded
Oh, i didn't see it coming
Mature professor seems to don't understand something
Knowledge is power!
Knowledge is power!