My success wasn't so much due to intelligence, but the fact that I stuck with problems longer.

Out of the multitude of our sense experiences we take, mentally and arbitrarily, certain repeatedly occurring complexes of sense impression (partly in conjunction with sense impressions which are interpreted as signs for sense experiences of others), and we attribute to them a meaning the meaning of the bodily object.

No worthy problem is ever solved within the plane of its original conception.

Here's a Challenge: Study a complicated topic in such detail that anyone interested can nod their head and understand as you explain specific concepts within the topic.

God always takes the simplest way.

On the other hand, the concept owes its meaning and its justification exclusively to the totality of the sense impressions which we associate with it.

If I had it [life] to do all over again, I'd have been a plumber.