Caution is crediting, and reserve in speaking, and in revealing one's self to but very few, are the best securities both of a good understanding with the world, and of the inward peace of our own minds.
Thomas a KempisStudy, therefore, to withdraw the love of your soul from all things that are visible, and turn it to things that are invisible.
Thomas a KempisWe would willingly have others perfect, and yet we amend not our own faults. We would have others severely corrected and will not be corrected ourselves. The large liberty of others displeases us, and yet we will not have our own desires denied us. We will have others kept under by strict laws, but in no sort will ourselves be restrained. And thus it appears how seldom we weigh our neighbor in the same balance with ourselves.
Thomas a Kempis