独学而无友，则孤陋而寡闻 "Learning alone without exchanges with others will lead to ignorance."

独协大学 Dokkyo University

独学的 self-taught

独立思考和学习 independent thinking and learning

独协医科大学 dokkyo university school of medicine

学会孤独 Learn to be lonely ; Learn alone enjoy the loneliness ; Lonely Institute ; Learn alone

姫路独协大学 Himeji Dokkyo University

姬路独协大学 Himeji Dokkyo University

独立自主学习 learn individually and independently