Wise men, when in doubt whether to speak or to keep quiet, g... - Napoleon Hill
"Wise men, when in doubt whether to speak or to keep quiet, give themselves the benefit of the doubt, and remain silent."
More quotes by Napoleon Hill
"Think twice before you speak, because your words and influence will plant the seed of either success or failure in the mind of another."
"It is literally true that you can succeed best and quickest by helping others to succeed."
"There are no limitations to the mind except those that we acknowledge."
"Happiness is found in doing, not merely possessing."
"The ladder of success is never crowded at the top."