Date: 1947, 1948, 1949, 1950, 1951

"It is certainly not then--not in dreams--but when one is wide awake, at moments of robust joy and achievement, on the highest terrace of consciousness, that mortality has a chance to peer beyond its own limits, from the mast, from the past and its castle tower."

— Nabokov, Vladimir (1899-1977)

Date: 1962

"And let me add here how much I was honored a fortnight later to meet in Washington that limp-looking, absent-minded, shabbily dressed splendid American gentleman whose mind was a library and not a debating hall."

— Nabokov, Vladimir (1899-1977)

Date: July, 1962; November 22, 1962; 1973

"Memory is, really, in itself, a tool, one of the many tools that an artist uses; and some recollections, perhaps intellectual rather than emotional, are very brittle and sometimes apt to lose the flavor of reality when they are immersed by the novelist in his book, when they are given away to ch...

— Nabokov, Vladimir (1899-1977)

Date: July, 1962; November 22, 1962; 1973

"Some of my characters are, no doubt, pretty beastly, but I really don't care, they are outside my inner self like the mournful monsters of a cathedral façade--demons placed there merely to show that they have been booted out."

— Nabokov, Vladimir (1899-1977)

Date: 1962

"I find it wise in such cases as this to eliminate the bother of back-and-forth leafings by either cutting out and clipping together the pages with the text of the thing, or, even more simply, purchasing two copies of the same work which can then be placed in adjacent positions on a comfortable t...

— Nabokov, Vladimir (1899-1977)

Date: January 11, 2014

"As your body sleeps, your brain is quite actively playing the part of mental janitor: It’s clearing out all of the junk that has accumulated as a result of your daily thinking."

— Konnikova, Maria (b. 1984)

Date: January 11, 2014

"How, then, does its waste — like beta-amyloid, a protein associated with Alzheimer’s disease — get cleared? What happens to all the wrappers and leftovers that litter the room after any mental workout?"

— Konnikova, Maria (b. 1984)

Date: January 11, 2014

"'Think about a fish tank,' says Dr. Nedergaard. 'If you have a tank and no filter, the fish will eventually die. So, how do the brain cells get rid of their waste? Where is their filter?'"

— Konnikova, Maria (b. 1984)

Date: January 11, 2014

"If the main function of sleep is to take out our neural trash, that insight could eventually enable a new understanding of both neurodegenerative diseases and regular, age-related cognitive decline."

— Konnikova, Maria (b. 1984)

Date: January 11, 2014

"One day, scientists might be able to successfully mimic the expansion of the interstitial space that does the mental janitorial work so that we can achieve maximally efficient round-the-clock brain trash pickup."

— Konnikova, Maria (b. 1984)