“Embrace each challenge in your life as an opportunity for self-transformation.”

Source: Life, the Truth, and Being Free (2010), p. 28
Context: Although time seems to fly by, it never travels faster than one day at a time. Each day is a new opportunity to live your life to the fullest.

Address to the United Nations (1963)
Context: When we talk of the equality of man, we find, also, a challenge and an opportunity; a challenge to breathe new life into the ideals enshrined in the Charter, an opportunity to bring men closer to freedom and true equality. and thus, closer to a love of peace.
The goal of the equality of man which we seek is the antithesis of the exploitation of one people by another with which the pages of history and in particular those written of the African and Asian continents, speak at such length.
Exploitation, thus viewed, has many faces. But whatever guise it assumes, this evil is to be shunned where it does not exist and crushed where it does.

Variant: Each time we embrace someone warmly, we gain an extra day of life.
Source: Aleph

As quoted in Infinity in Your Hand : A Guide for the Spiritually Curious (1994) by William H. Houff, p. 151
Context: Any ritual is an opportunity for transformation. To do a ritual, you must be willing to be transformed in some way. The inner willingness is what makes the ritual come alive and have power. If you aren't willing to be changed by the ritual, don't do it.