Einstein and Maitland

There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there. All great discoveries have involved such a leap.
The important thing is not to stop questioning.

Albert Einstein (1879 - 1955)



Old theories ARE useful. We should always learn from the past.

The historian Maitland said "today we study the day before yesterday, in order that yesterday may not paralyse today, and today may not paralyse tomorrow".