Who said "To do nothing is sometimes the best plan."?

This quote is attributed to Sherlock Holmes.

To do nothing is sometimes the best plan. - Sherlock Holmes

"To do nothing is sometimes the best plan."

Sherlock Holmes Patience

"The game is afoot!"

"Elementary, my dear Watson."

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."

"I am not a romantic, but I am a realist."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."