"It is one of the chief skills of the philosopher not to occupy himself with questions which do not concern him."

"My difficulty is only an — enormous — difficulty of expression."

"Don't get involved in partial problems, but always take flight to where there is a free view over the whole single gr…"

"I cannot get from the nature of the proposition to the individual logical operations!!! That is, I cannot bring out h…"

"I work quite diligently and wish that I were better and smarter. And these both are one and the same."

"It seems to me as good as certain that we cannot get the upper hand against England. The English — the best race in t…"

"Logic takes care of itself; all we have to do is to look and see how it does it."

""It is necessary to be given the prop that all elementary props are given." This is not necessary because it is even …"

"One often makes a remark and only later sees how true it is."

"Language is a part of our organism and no less complicated than it."