“To withstand in front of danger, close the chances of growth of the risks, first stop the flow of the danger and then analyse the risks that have occurred and the ones that have not taken place yet.”

Source: Platform

Inside Information p. 4
The Book on the Taboo Against Knowing Who You Are (1966)

Source: Manuscript Found in Accra

Ibid., p. 96
The Book of Disquiet
Original: Nunca vou para onde há risco. tenho medo a tédio dos perigos.

"All for the Good: Why genetic engineering must soldier on" in TIME magazine, Vol. 153, No. 1 (11 January 1999) http://www.mindfully.org/GE/Soldier-On-James-Watson.htm
Context: When anti-DNA doomsday scenarios failed to materialize, even the modestly restrictive governmental regulations began to wither away. In retrospect, recombinant-DNA may rank as the safest revolutionary technology ever developed. To my knowledge, not one fatality, much less illness, has been caused by a genetically manipulated organism.
The moral I draw from this painful episode is this: Never postpone experiments that have clearly defined future benefits for fear of dangers that can't be quantified. Though it may sound at first uncaring, we can react rationally only to real (as opposed to hypothetical) risks.

60 Minutes interview (2010)
Context: I love it when people say "What a horrible, lousy idea." I think that's great … I hate the comfort zone … I don't think that anything that's really creative can be done without danger and risk.

The Four Loves (1960)
Context: To love at all is to be vulnerable. Love anything, and your heart will certainly be wrung and possibly be broken. If you want to make sure of keeping it intact, you must give your heart to no one, not even to an animal. Wrap it carefully round with hobbies and little luxuries; avoid all entanglements; lock it up safe in the casket or coffin of your selfishness. But in that casket — safe, dark, motionless, airless — it will change. It will not be broken; it will become unbreakable, impenetrable, irredeemable. The alternative to tragedy, or at least to the risk of tragedy, is damnation. The only place outside of Heaven where you can be perfectly safe from all the dangers and perturbations of love is Hell.

Living, Loving, and Learning (1982)
Variant: Risks must be taken because the greatest hazard in life is to risk nothing.
Source: Living Loving and Learning
Context: To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risks must be taken, because the greatest hazard in life is to risk nothing.

Living, Loving, and Learning (1982)