It is the true nature of mankind to learn from mistakes, not from example

Things are the way they are because they were the way they were.

Once I had learnt my twelve times table (at the age of three) it was downhill all the way.

The man who voyages strange seas must of necessity be a little unsure of himself. It is the man with the flashy air of knowing everything, who is always with it, that we should beware of.

I don't see the logic of rejecting data just because they seem incredible.

There is a coherent plan in the universe, though I don't know what it's a plan for.