Through corruption of the Dhamma comes corruption of the discipline, and from corruption of the discipline comes corruption of the Dhamma. This is the first future danger as yet unarisen that will arise in the future. You should recognize it and make an effort to prevent it. (AN 5.79)
"If you stand up and be counted, from time to time you may get yourself knocked down. But remember this: A man flattened by an opponent can get up again. A man flattened by conformity stays down for good." - Thomas J. Watson
(But that answer is suited to my level of development, very gross kilesas.)
Kammalakkhano , bhikkhave, bālo, kammalakkhano pandito, apadānasobhanī paññāti (The fool is characterized by his/her actions/the wise one is characterized by his/her actions/Wisdom shines forth in behaviour.) (AN 3.2 Lakkhana Sutta)
"When you meditate, don't send your mind outside. Whatever knowledge you've gained from books or teachers, don't bring it in to complicate things. Cut away all preoccupations, and then as you meditate let all your knowledge come from what's going on in the mind. When the mind is quiet, you'll know it for yourself. But you have to keep meditating a lot. When the time comes for things to develop, they'll develop on their own. Whatever you know, have it come from your own mind.http://www.accesstoinsight.org/lib/thai/dune/giftsheleft.html"