How far my efforts agree with those of other philosophers I will not decide. Indeed what I have here written makes no claim to novelty in points of d… - Ludwig Wittgenstein

I give no sources, because it is indifferent to me
whether what I have thought has already been
thought before me by another.

310. A pupil and a teacher. The pupil will not let anything be explained to him, for he continually interrupts with doubts, for instance as to the existence of things, the meaning for words, etc. The teacher says "Stop interrupting me and do as I tell you. So far your doubts don't make sense at all."

Nothing is more important for teaching us to understand the concepts we have than to construct fictitious ones.

The meaning of a word is what an explanation of its meaning explains.” That is, if you want to understand the use of the word “meaning”, look for what one calls “an explanation of meaning”.