Perfecting one's intellect causes one to speak less, and those words spoken will be adorned with wisdom.
Do not be too hard, lest you be broken; do not be too soft, lest you be squeezed.
One who thinks and reflects develops his foresight and vision.
The disease of the heart is worse than the disease of the body.
Like your body your mind also gets tired so refresh it by wise sayings.
When proven wrong, the wise man will correct himself and the ignorant will keep arguing.