William Blake was considered something of nut in his own time, but over 200 years later, both his words and his art seem quite contemporary.

If the fool would persist in his folly he would become wise.
- William Blake

Every harlot was a virgin once.
- William Blake

The weak in courage is strong in cunning.
- William Blake

The difference between a bad artist and a good one is: The bad artist seems to copy a great deal; the good one really does.
- William Blake

If the doors of perception were cleansed everything would appear to man as it is, infinite.
- William Blake