Old age is like everything else. To make a success of it, you've got to start young.

This quote means that if you want to have a successful and productive old age, you should start taking care of yourself when you are young. If you stay healthy and make smart choices when you are young, it usually translates into having a healthier and more successful old age. Taking care of yourself and making good choices when you are young can help you enjoy life as an older person.