As a student, I absolutely adore this one:
Jacob Riis wrote:When nothing seems to help, I go look at a stonecutter hammering away at his rock, perhaps a hundred times without as much as a crack showing in it. Yet at the hundred and first blow it will split in two, and I know it was not that blow that did it, but all that had gone before.
As a track fan, who always gets involved in heated debates with others, these two help:
Carl Sagan wrote:You can’t convince a believer of anything, for their belief is not based on evidence; it’s based on a deep-seated need to believe.
Francis Bacon wrote:Man prefers to believe what he prefers to be true.