Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic

You might say that certain words are only pegs to hang intonations on.

I am sitting with a philosopher in the garden; he says again and again 'I know that that’s a tree', pointing to a tree that is near us. Someone else arrives and hears this, and I tell him: 'This fellow isn’t insane. We are only doing philosophy.

If there were a verb meaning "to believe falsely," it would not have any significant first person, present indicative.

It is truly strange how long it takes to get to know oneself. I am now sixty two years old, yet just one moment ago I realised that I absolutely love lightly toasted bread. Simultaneously, I also realised that I loathe bread when it is heavily toasted. For almost sixty years, and quite unconsciously, I have been experiencing inner joy or total despair at my relationship with grilled bread.

Whereof one cannot speak, thereof one must be silent.

When you are philosophizing you have to descend into primeval chaos and feel at home there.