Reforming ignorantly, will consequence crisis and destruction.

If you cannot tolerate do not contribute.

The old injury sometimes hurts.

The owner of the science and wisdom is like a sea, how much wisdom getting from him, or dedicates it wont decrease from him.

If you lose the diamond, the stone will not replace it

Beware of that person who uses you like a ladder, today climbs on you, tomorrow will easily sells you.

Spread your wisdom among those who value your words .

Do not afraid of the distance of your path, because the widen path shows as narrowed.

If you threw a stone to my direction, if the stone was not for me nor hits me, but it will hurt.