it is a principle of his that no man who was not a true gentleman at heart, ever was, since the world began, a true gentleman in manner. He says, no … - Charles Dickens

No varnish can hide the grain of the wood; and that the more varnish you put on, the more the grain will express itself.

My dear child,' said the old gentleman, moved by the warmth of Oliver's sudden appeal, 'you need not be afraid of my deserting you, unless you give me cause.'
I never, never will, sir,' interposed Oliver.
I hope not,' rejoined the old gentleman; 'I do not think you ever will. I have been deceived before, in the objects whom I have endeavoured to benefit; but I feel strongly disposed to trust you, nevertheless, and more strongly interested in your behalf than I can well account for, even to myself. The persons on whom I have bestowed my dearest love lie deep in their graves; but, although the happiness and delight of my life lie buried there too, I have not made a coffin of my heart, and sealed it up for ever on my best affections. Deep affliction has only made them stronger; it ought, I think, for it should refine our nature.

He is not, as he forcibly remarks, ‘one of those fortunate men who, if they were to dive under one side of a barge stark–naked, would come up on the other with a new suit of clothes on, and a ticket for soup in the waistcoat–pocket:’ neither is he one of those, whose spirit has been broken beyond redemption by misfortune and want. He is just one of the careless, good–for–nothing, happy fellows, who float, cork–like, on the surface, for the world to play at hockey with: knocked here, and there, and everywhere: now to the right, then to the left, again up in the air, and anon to the bottom, but always reappearing and bounding with the stream buoyantly and merrily along.

I have known a vast quantity of nonsense talked about bad men not looking you in the face. Don't trust that conventional idea. Dishonesty will stare honesty out of countenance, any day in the week, if there is anything to be got by it.