„If you have time to be mindful, you have time to meditate.“

„That which is known as "meditation" is the act of sustaining an object of meditation and specific subjective aspects by repeatedly focusing your mind upon a virtuous object of meditation. The purpose of this is as follows. From beginningless time you have been under the control of your mind; your mind has not been under your control. Furthermore, your mind tended to be obscured by the afflictions and so forth. Thus meditation aims to bring this mind, which gives rise to all faults and flaws, under control and then it aims to make it servicable. Servicability means that you can direct your mind as you wish toward a virtuous object of meditation.“

—  Je Tsongkhapa Tibetan Lama 1357 - 1419

The Great Treatise on the Stages of the Path to Enlightenment, as translated by Chenmo Translation Committee (2000) p. 99

„To listen, to learn, your mind has to be still. Have you ever observed that you can have only one thought in your mind at a time?“

—  Barry Long Australian spiritual teacher and writer 1926 - 2003

Knowing Yourself: The True in the False (1996)

„It is not enough to be in the right place at the right time. You should also have an open mind at the right time.“

—  Paul Erdős Hungarian mathematician and freelancer 1913 - 1996

My Brain Is Open : The Mathematical Journeys of Paul Erdos (1998) by Bruce Schechter, p. 99

„If you have time to chatter,
Read books.

If you have time to read,
Walk into mountain, desert and ocean.

If you have time to walk,
Sing songs and dance.

If you have time to dance,
Sit quietly, you happy, lucky idiot.“

—  Nanao Sakaki Japanese poet 1923 - 2008

„The mind is always asking you to do something over again, something you have already done so many times before. And every time you see that by doing it nothing is achieved. What else can madness be?“

—  Benjamin Franklin American author, printer, political theorist, politician, postmaster, scientist, inventor, civic activist, statesman, a… 1706 - 1790

Misattributed

„The time to relax is when you don't have time for it.“

—  Sydney J. Harris American journalist 1917 - 1986

„Time is a gift, given to you, given to give you the time you need, the time you need to have the time of your life.“

—  Norton Juster, livro The Phantom Tollbooth

Fonte: The Phantom Tollbooth

„Mindfulness helps you go home to the present. And every time you go there and recognize a condition of happiness that you have, happiness comes“

—  Thich Nhat Hanh Religious leader and peace activist 1926

Fonte: Anger: Wisdom for Cooling the Flames

„If you don’t have time to do it right, when will you have time to do it over?“

—  Albert Einstein German-born physicist and founder of the theory of relativity 1879 - 1955

„If you don't have time to do it right, when will you have the time to do it over?“

—  John Wooden American basketball coach 1910 - 2010

„Little minds have little worries, big minds have no time for worries.“

—  Ralph Waldo Emerson American philosopher, essayist, and poet 1803 - 1882

„If you don't have time to read, you don't have the time (or the tools) to write. Simple as that.“

—  Stephen King American author 1947

Variante: Can I be blunt on this subject? If you don't have time to read, you don't have the time (or the tools) to write. Simple as that.
Fonte: On Writing: A Memoir of the Craft

„Do things right the first time. If you don’t have time to do a job once, you certainly don’t have time to do it again.“

—  Don Soderquist 1934 - 2016

Don Soderquist “ Live Learn Lead to Make a Difference https://books.google.com/books?id=s0q7mZf9oDkC&lpg=pg=PP1&dq=Don%20Soderquist&pg=PP1#v=onepage&q&f=false, Thomas Nelson, April 2006 p. 58.
On Doing Things Right

„The trouble is, you think you have time.“

—  Jack Kornfield American writer 1945

Fonte: Buddha's Little Instruction Book

„The time is at hand when you will have forgotten everything; and the time is at hand when all will have forgotten you. Always reflect that soon you will be no one, and nowhere.“

—  Marcus Aurelius, livro Meditações

Fonte: Meditations

„You would never have the time“

—  Pete Yorn American musician 1974

Song lyrics

„Just when you feel you have no time to relax, know that this is the moment you most need to make time to relax.“

—  Matt Haig, livro Reasons to Stay Alive

Fonte: Reasons to Stay Alive

„Reflect as if you have all of time, even when time is short.“

—  Tamora Pierce, livro First Test

Fonte: First Test

„Do all you can with what you have in the time you have in the place you are.“

—  Nkosi Johnson South African child AIDS activist 1989 - 2001

One Boy's Heroism in the Face of AIDS, National Public Radio, December 1, 2004, 2008-12-27 http://www.npr.org/templates/story/story.php?storyId=4195336,