One must not be negligent in learning. In the Lun Yu it says: "To study and not to think is darkness. To think without study is dangerous."
Takeda NobushigeGood medicine is bitter to the mouth, but has an effect on the disease. Faithful words hurt one's ears, but have value for one's conduct.
Takeda NobushigeOne should not utter a word about his own inadequacies. In the Oxo it says: 'When a man lets out a single word, the long and short of him will be known.'
Takeda Nobushige