Final answer:
The quotes discuss the importance of daily efforts towards future success, living a rich and full life regardless of its length, preemptive actions to avert global calamity, and the resilience needed to overcome challenges rather than avoiding failure altogether.
Step-by-step explanation:
Understanding Quotations and Their Messages
The quotes provided share deep insights into life, responsibility, and personal growth. The messages they convey suggest that preparation for the future is deeply rooted in our actions today, as stated by H. Jackson Brown: 'The best preparation for tomorrow is doing your best today.' This means that the effort you put into your current work and responsibilities is the foundation for your successes and readiness for what is to come.
Abraham Lincoln's statement, 'In the end, it’s not the years in your life that count. It’s the life in your years.', implies that the richness of our experiences and how we live each day ultimately define our lives more than the sheer length of it. Similarly, John F. Kennedy emphasizes the significance of proactive measures with a dire theme: 'Mankind must put an end to war before war puts an end to mankind.' He urges that before conflict escalates to a point of no return, preventative actions must be taken to preserve humanity.
Nelson Mandela's powerful idea, 'The greatest glory in living lies not in never falling, but in rising every time we fall.', highlights resilience as crucial to achieving a fulfilling life. It is not about avoiding failure, but about the courage to recover and learn from setbacks.