Thumbnail Thinker T-Shirts

"I know it's only a thumbnail sketch, but I quite like it!"

"Do you want to play doctorate?"

Thinking Gears

"I'm starting him off with a little rope theory."

"I haven't started playing the violin. I hide my vegetables in here!"

WELCOME TO KINDERGARTEN!, 'Boy, talk about psychobabbl!'

Clever visual metaphor used to personify the abstract concept of thought and memory.

"Kindergarten, first grade,second grade, third grade...when do we get to retire?"

Medieval Vacation: 'What? I am relaxed. I'm relaxing!'

"William Blake said you can see the whole world in a grain of sand, but he doesn't always make a lot of sense."

'I've been told before that I'm very mature for a three year old.'

"Let's see if I understand: your brain can't be upgraded with additional memory, and to make matters even worse, untold thousands of those brain cells die each day?"

Ceiling Paint

'Dear editor, today I saw the first cuckold of spring...' (Divorce Lawyer).

"I don't get this whole age thing...I waited all year to turn nine, but now I don't feel any older!"

Cutting down the Brain

"What about your precious opposable thumbs now?"

'I draw on the walls and get time out. They do it and get famous!'

'I understand how I was born; I want to know why.'

'But Mom, if God didn't want us to text message, he wouldn't have given us opposable thumbs.'

'To err is human. To really screw up requires a plan.'

"Thank you for computerising the company - you are now obsolete, Goodbye."

"Don't get too attached, everything you cherish will disappear the moment you look away. Nothing you love is permanent."

"If I've got no messages how do I know I even EXIST!"

Mechanic tinkering with engine of a car made of a human head

'Are you the opposite sex, or am I?'

'We've simplified the software.'

'She always has her own way. She even writes her diary a few days in advance.'

'...I just get nervous about opening up and talking about it.'

"What if we don't change anything at all...and something magical just happens."

Cat Philosophers

"So here we see how Covid-19 is also damaging the brain."

'Take the optimistic approach. When you sit down to eat, think of your stomach as being half full.'

Umbrella.

'He's at that difficult age. Too little to be a hunk and too young to be a couch potatoe.'