My father learned the French language at 65 years of
age, and became an authority on it at 70. He made a study of
Gaelic when he was over 60, and became an acknowledged and
famous teacher of the subject He assisted my sister in a school
of higher learning and continued to do so until he passed
away at 99. His mind was as clear at 99 as it was when he was
20. Moreover, his handwriting and his reasoning powers had
improved with age. Truly, you are as old as you think and feel.