“The fact is, I have been dead so long and it has been simply such a grim shoving of the hours behind mesince the hideous summer of 78, when I went down to the deep sea, its dark waters closed over ...”

“If I can get on to my sofa and occupy myself for four hours, at intervals through the day, scribbling my notes, and able to read the books that belong to me, in that they clarify the density, and s...”

“In looking back now, I see how it began in my childhood, altho I was not conscious of the necessity until 67 or 68 when I broke down first, acutely, and had violent turns of hysteria. As I lay pros...”

“The success or failure of a life, as far as posterity goes, seems to lie in the more or less luck of seizing the right moment of escape.”

“One has a greater sense of degradation after an interview with a doctor than from any human experience.”

“It is so comical to hear oneself called old even at ninety I suppose!”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“The truth." Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution.”

“The truth is rarely pure and never simple.”

“Never tell the truth to people who are not worthy of it.”