Talent is a spring from which fresh water always flows.- But this spring is worthless if no good use is made of it.

How small a thought it takes to fill a life.

Think of words as instruments characterized by their use, and then think of the use of a hammer, the use of a chisel, the use of a square, of a glue pot, and of the glue.

I might say: if the place I want to get to could only be reached by way of a ladder, I would give up trying to get there. For the place I really have to get to is a place I must already be at now. Anything that I might reach by climbing a ladder does not interest me.

Logic must look after itself. In a certain sense, we cannot make mistakes in logic.

Belief in the causal nexus is superstition.

Philosophy is like trying to open a safe with a combination lock: each little adjustment of the dials seems to achieve nothing, only when everything is in place does the door open.