Stock Photos: bald With beard

Do you want to bet against me?
Look, it's time for an adult conversation
Sorry, i don't think i can help you
Sorry, i don't think i can help you
Well, what's looming on the horizon?
We'll see who has the last laugh
Well, what's in the papers today?
Too-full feeling after eating just a little too much
Give me your word you won't do that again
Excellent results folks!
I'm as strong as an ox
Feeling quite serious when thinking about science
Quite contented with work result
Mature man pointing up and looks like explaining something
Laughing mature professor holding his glasses
Mature professor adjusting his eyeglasses
I am warning you for the last time
I'm begging you, stop it!
Hey, i'm just fooling around here
I like to stay on top of things, you know
You wanna say that again?
Don't you dare come near me!
What a sweet grandpa... or it just seems so
He seems pretty pleased with himself
I still feel as fresh as a daisy
This science decision is not my thing
Old professor holding book and looks surprised
Pensive mature man bitting his eyeglasses
Well, and what we're gonna do about that?
Excited mature professor adjusting eyeglasses
Wow! it`s a pineapple!