What book is this quote from "we cannot tell the precise moment when friendship is formed. as in filling a vessel drop by drop, there is at last a drop which makes it run over; so in a series of kindnesses there is at last one which makes the heart run over." fahrenheit 451?

I agree with you, this quote is from the novel “Fahrenheit 451” by Ray Bradbury.

 

This particular quote is found on page 67, second paragraph of the novel “Fahrenheit 451” written by an American writer Ray Bradbury in 1953. This quote from Bradbury's “Fahrenheit 451” can be found also in “The Life of Samuel Johnson, LL.D.” written by James Boswell and it serves as an allusion because when Montag starts to read books he remembers his encounter with Faber, his lifelong friend, which is the same for Boswell and his lifelong friend Samuel Johnson.

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

The answer is a true