A good mind is a lord of a kingdom.
The mind does not easily unlearn what it has been long in learning.
I never come back home with the same moral character I went out with; something or other becomes unsettled where I had achieved internal peace; some one or other of the things I had put to flight reappears on the scene.
To rule yourself is the ultimate power
If God adds another day to our life, let us receive it gladly.
My joy in learning is partly that it enables me to teach.