认识的发展是没有止境的。 ( The development of knowledge is endless. )

学无止境，只有刻苦学习的人才能有所发现，有所发明，有所创造，有所前进。 ( There is no limit to learning. Only those who study hard can discover, invent, create, and move forward. )

学无止境，切不可狂妄自大。 ( There is no end to learning, and you must not be arrogant. )