Final answer:
Helen Keller said the quote "Use your eyes as if tomorrow you would be stricken blind" to emphasize the importance of appreciating and valuing sight.
Step-by-step explanation:
The quote "Use your eyes as if tomorrow you would be stricken blind" is attributed to Helen Keller. It does not come from a specific work but is a famous quote that reflects Keller's perspective on the importance of appreciating and valuing sight and perception. Keller, who was blind and deaf herself, understood the significance of using one's senses to their fullest potential. This quote inspires others to cherish the gift of sight and to take advantage of every opportunity to observe and absorb the beauty of the world.