Even though it might be a cliché, it is wise to begin with the end in mind, which is why the life advice from elderly people is important. Compiled by entrepreneur and writer James Altucher, 'Life Advice From 12 People Over 100' is a chart (and accompanying article) that includes what tips seniors would give to those who are only at the beginning or part way through their journey on earth.
It is also probably worth noting that 11 out of the dozen people featured are women, with only one man's voice included. Shigeaki Hinohara encourages people to "make big art," which is a metaphor for lofty goals that will likely not be completed in your lifetime. Other themes include loving people and perseverance.