Action, whether of the head, heart or hand,
is necessary to life.
-A. S. Vickers
What you can do, or dream you can, begin it;
Boldness has genius, power and magic in it.
-Johann Wolfgang von Goethe (attributed)
If we did all the things
we are capable of doing,
we would literally astound ourselves.
-Thomas Edison
For the purposes of action
nothing is more useful than
the narrowness of thought
combined with energy of will.
-Henri Frederic Amiel
There is a time to act
and a time to think about acting.
They are not the same.
-Stewart W. Holmes and Chimyo Horioka
Action is always in the present,
and therefore immediate.
-Jiddu Krishnamurti
Each act is virgin,
even the repeated ones.
-Rene Char
The highest kind of action
is action which is direct and instantaneous.
-Nilakantha Sri Ram
Be great in act,
as you have been in thought.
-William Shakespeare
If you are going to act on the basis of what you know,
you cannot just hold on to your knowledge.
You have to translate it into a movement.
-Joseph Campbell
Light is not enough
action must follow
climbing the path
-Sivananda Radha
The great end of life
is not knowledge but action.
-Thomas Huxley
Action is the proper fruit of knowledge.
-Thomas Fuller
Action itself,
so long as I am convinced it is the right action,
gives me satisfaction.
-Jawaharlal Nehru
Go confidently in the direction of your dreams.
Act as if it were impossible to fail.
-Dorothea Brande
Strong reasons
make strong actions.
-William Shakespeare
Correct behavior means you are occupied
with commendable activity.
-Ibn 'Ata' Illah
There is proper dignity and proportion
to be observed in the performance of every act in life.
-Marcus Aurelius
Act so you have no cause to be ashamed of yourselves;
and hold fast to this rule.
-Milarepa
Let every action
aim solely at the good.
-Marcus Aurelius
Whenever you are to do a thing tho' it can never be known but to yourself, 
ask yourself how you would act were all the world looking at you, 
and act accordingly.
-Thomas Jefferson

A person should always imagine
that the fate of the whole world
depends upon his or her actions.
-Zohar
Every action we take, 
everything we do
is either a victory or defeat
in the struggle to become what we want to be.
-Ninon de L'Enclos
Action is movement with intelligence.
-B. K. S. Iyengar
Action is eloquence.
-William Shakespeare
Actions live when you live in them.
-Selvarajan Yesudian
All our actions take their hues
from the complexion of the heart.
-William Thompson Bacon
There is a vitality, a life force
that is translated through you into action.
-Martha Graham
One must never undertake an action of any kind
without knowing the forces
that one is going to set in motion.
-Omraam Mikhael Aivanhov
Act without doing;
work without effort.
-Tao Te Ching
Let not the fruit of acton be your motive to action.
Your business is with action alone,
not with the fruit of action.
-Bhagavad Gita
Spiritually oriented action
is free and spontaneous action,
relaxed and non-attached.
-Haridas Chaudhuri
When there is action without reaction,
there is no binding.
-R. Sri Ram
When you do something,
you should burn yourself completely,
like a good bonfire
leaving no trace of yourself.
-Shunryu Suzuki

Inaction may be the highest form of action.
-Jerry Brown
He who sees the inaction that is in action,
and the action that is in inaction
is wise indeed.
-Bhagavad Gita