The measure of intelligence is the ability to change.
Albert Einstein
A person who never made a mistake never tried anything new.
Blessed is he who expects nothing, for he shall never be disappointed.
Alexander Pope
I am not proud, but I am happy; and happiness blinds, I think, more than pride.
Alexandre Dumas
There lives more faith in honest doubt, believe me, than in half the creeds.
Alfred Tennyson
The most common way people give up their power is by thinking they don't have any.
Alice Walker