He looked at her again, now with the vague abject shyness that older men often have with young women, as though asking their indulgence for no longer being young. The Post Office Girl 

Man is least himself when he talks in his own person. Give him a mask, and he will tell you the truth. The Critic as Artist

As it is so strangely ordained in this world, what is amusing will turn into being gloomy, if you stand too long before it, and then God knows what ideas may not stray into the mind... Why is it that even in moments of unthinking, careless gaiety a different and strange mood comes upon one? Dead Souls

Now the compound or composite may be supposed to be naturally capable of being dissolved in like manner as being compounded; but that which is uncompounded, and that only, must be, if anything is, indissoluble. ...And the uncompounded may be assumed to be the same and unchanging, where the compound is always changing and never the same? ...Is that idea or essence, which in the dialectical process we define as essence of true existence—whether essence of equality, beauty, or anything else: are these essences, I say, liable at times to some degree of change? or are they each of them always what they are, having the same simple, self-existent and unchanging forms, and not admitting of variation at all, or in any way, or at any time? The Trials Of Socrates