The surest hindrance of ...

The surest hindrance of success is to have too high a standard of refinement in our own minds, or too high an opinion of the judgment of the public. He who is determined not to be satisfied with anything short of perfection will never do anything to please himself or others.
The surest hindrance of success is to have too high a standard of refinement in our own minds, or too high an opinion of the judgment of the public. He who is determined not to be satisfied with anything short of perfection will never do anything to please himself or others.

Quotes from the same author

Just as much as we see in others, we have in ourselves.
A proud man is satisfied with his own good opinion, and does not seek to make converts to it.
The love of liberty is the love of others; the love of power is the love of ourselves.
Men are in numberless instances qualified for certain things, for no other reason than because they are qualified for nothing else.
As is our confidence, so is our capacity.