“Don't you ever allow doubts to paralyze your actions.”

“I don't allow myself to doubt myself even for a moment.”

“Laugh at yourself, but don't ever aim your doubt at yourself. Be bold. When you embark for strange places, don't leave any of yourself safely on shore. Have the nerve to go into unexplored territory.”

“Don't ever forget the moment you began to doubt, transitioning from fitting in to standing out.”

“Fear is inevitable, I have to accept that, but I cannot allow it to paralyze me.”

“If you can keep your head when all about you
Are losing theirs and blaming it on you,
If you can trust yourself when all men doubt you,
But make allowance for their doubting too;!”

“I don't think you can ever be bitter about anything, because if you don't allow your heart to stay open, then all you have is a filled heart of hate and bitterness, and you're never able to love or like anybody…”

“Doctor, you don't know what it is to doubt everything, even yourself. No, you don't; you couldn't with eyebrows like yours.”

“Since your mind has cast the clouds of doubt, it will also let you know when the time is right for action.”

“The mid-day sun is too much for most eyes; one is dazzled even with its reflection. Be careful that too broad and high an aim does not paralyze your effort and clog your springs of action.”