Believing is seeing" is much more effective for me than the old notion that seeing is believing.

I don't put my ideas in a meeting for acceptance or rejection, I put them in the market for success or failure.

Beliefs are stronger than mere ideas, thoughts and notions, be careful about what you believe.

If thy meditation tends to fill thy note-book with notions, and good sayings, concerning God, and not thy heart with longing after him, and delight in him, for aught I know thy book is as much a Christian as thou (553).