The most terrifying thing is to accept oneself completely.  The Little Zen Companion

The worst sin towards our fellow creatures is not to hate them, but to be indifferent to them: that's the essence of inhumanity. The Devil's Disciple

Absolute greatness will never be great and also small, but that greatness in us or in the concrete will never admit the small or admit of even being exceeded; instead of this, one of two things will happen—either the greater will fly and retire before the opposite, which is the less, or the advance of the less will cease to exist; but will not, if allowing or admitting smallness, be changed by that...nor can any other opposite which remains the same ever be or become its own opposite, but either passes away or perishes in the change. The Trials Of Socrates

Nature is not a temple but a workshop, and man is the workman in it." Fathers and Sons