To know oneself, one should assert oneself.
The dog that trots about finds a bone.
The wise does at once what the fool does at last.
After a storm comes a calm.
Know or listen to those who know.
Always desire to learn something useful.
Do not weep do not wax indignant. Understand.
Be gentle to all and stern with yourself.
Be thine own palace, or the world's thy jail.
Be kind whenever possible. It is always possible.
As human beings we do change, grow, adapt, perhaps even learn and become wiser.