Yquotes.com

 

You do not really understand something unless you can explain it to your grandmother.
--
variant: If you can't explain something to a six-year-old, you really don't understand it yourself.
--
variant: If you can't explain it simply, you don't understand it well enough.
--
Frequently attributed to Richard Feynman
--
Probably based on a similar quote about explaining physics to a "barmaid" by Ernest Rutherford

 

Albert Einstein

» Albert Einstein - all quotes »

Similar quotes

 

Everyone wants to understand painting. Why don’t they try to understand the song of the birds? Why do they love a night, a flower, everything which surrounds man, without attempting to understand them? Whereas where painting is concerned, they want to understand. Let them understand above all that the artist works from necessity; that he, too, is a minute element of the world to whom one should ascribe no more importance than so many things in nature which charm us but which we do not explain to ourselves. Those who attempt to explain a picture are on the wrong track most of the time. Gertrude Stein, overjoyed, told me some time ago that she had finally understood what my picture represented: three musicians. It was a still-life!

 

Pablo Picasso

 

I've never had a grandmother, a great-grandmother, nor a great-great-grandmother. I never even had a mother. I have certainly missed a great deal of love thereby, but fortune has compensated me by not giving me the capacity to hate anyone, neither nations nor individuals. If candlesticks and church bells have been plundered from my ancestors, then I'm only grateful that I'm so ignorant about genealogy.

 

Halldor Laxness

 

She said to her, "Grandmother, what great arms you have!"
"That's to embrace you the better, my child."
"Grandmother, what great legs you have!"
"That's to run the better, my child."
"Grandmother, what great ears you have!"
"That's to hear the better, my child."
"Grandmother, what great teeth you have!"
"That's for to eat you."
And upon saying these words, this naughty Wolf threw himself upon Little Red Riding Hood, and ate her.

 

Charles Perrault

 

You reason well, and your wit is bold, but you are too prejudiced. You do not let your eyes see nor your ears hear, and that which is outside your daily life is not of account to you. Do you not think that there are things which you cannot understand, and yet which are, that some people see things that others cannot? But there are things old and new which must not be contemplated by men's eyes, because they know, or think they know, some things which other men have told them. Ah, it is the fault of our science that it wants to explain all, and if it explain not, then it says there is nothing to explain. But yet we see around us every day the growth of new beliefs, which think themselves new, and which are yet but the old, which pretend to be young, like the fine ladies at the opera.

 

Bram Stoker

 

She again rubbed a match on the wall, and the light shone round her; in the brightness stood her old grandmother, clear and shining, yet mild and loving in her appearance. "Grandmother," cried the little one, "O take me with you; I know you will go away when the match burns out; you will vanish like the warm stove, the roast goose, and the large, glorious Christmas-tree." And she made haste to light the whole bundle of matches, for she wished to keep her grandmother there. And the matches glowed with a light that was brighter than the noon-day, and her grandmother had never appeared so large or so beautiful. She took the little girl in her arms, and they both flew upwards in brightness and joy far above the earth, where there was neither cold nor hunger nor pain, for they were with God.

 

Hans Christian Andersen