Answer :
Final answer:
Thoreau's aphorism in Walden's Section 17 highlights the importance of combining lofty dreams with practical action to achieve success.
Explanation:
Thoreau's aphorism from Walden's Section 17 emphasizes the importance of dreaming big and then taking action to make those dreams a reality. It suggests that while having lofty aspirations is valuable, it is essential to provide a solid foundation to support them for success.
Thoreau's message encourages individuals to pursue their ambitions with confidence and dedication, implying that ideas alone are not enough; actual work and effort are necessary to bring them to fruition.
By using the metaphor of building 'castles in the air' and then putting 'foundations under them,' Thoreau conveys the idea that one's visions and goals, no matter how grand, can be achievable with proper groundwork and commitment.
Learn more about Thoreau's aphorism on dreams and action here:
https://brainly.com/question/34379733