A gentleman is ashamed to let his words outrun his deeds.

Who heeds not the future will find sorrow at hand

I followed my heart without breaking any rules.

Who expects to be able to go out of a house except by the door? How is it then that no one follows this Way of ours?

There are three friendships which are advantageous, and three which are injurious. Friendship with the upright; friendship with the sincere; and friendship with the man of much observation: these are advantageous. Friendship with the man of specious airs; friendship with the insinuatingly soft; and friendship with the glib-tongued: these are injurious.

If I hold up one corner of a square and the student cannot workout the other three for himself, I won't go any further.

Let every man consider virtue as what devolves on himself. He may not yield the performance of it even to his teacher.