Conceit is a fog that envelops a man's real character beyond his own recognition. It weakens his native ability and strengthens all his inconsistencies .
- Napoleon Hill
For once the disease of reading has laid upon the system it weakens so that it falls an easy prey to that other scourge which dwells in the ink pot and festers in the quill. The wretch takes to writing.
- Virginia Woolf
A crowd in its very concept is the untruth, by reason of the fact that it renders the individual completely impenitent and irresponsible, or at least weakens his sense of responsibility by reducing it to a fraction.
- Soren Kierkegaard
I have always marveled that so many religions exact such revenge against dissenters. It only weakens the appeal of their faith and contradicts any claims they might have made that 'all religions are basically the same.'