/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: nozhaton https://cdn.slidesharecdn.com/profile-photo-nozhaton-48x48.jpg?cb=1523728551 ���Teaching should be such that what is offered is perceived as a valuable gift and not as a hard duty.��� ��� Albert Einstein