“Ups and downs are inevitable in life. The more favourable the situation, the humbler we need to be. Keep bitterness to ourselves and leave happiness to others.”

Source: The Rubaiyat (1120)

Source: All These Things I've Done

The Personality of Jesus (1932)
Context: If we acquiesce in the presence of injustice and misery, we not only fail to remove exploitation and poverty, but we abdicate in favor of those who seek deliverance by violence. On the other hand, if we offer effective non-violent resistance, we may bring suffering upon both evildoers and victims. If we are able to keep ourselves free from bitterness and vindictiveness, our procedure in every situation will be determined by our judgement as to which type of persuasiveness and which method of non-violent restraint are under the circumstances most ethical and most effective. We will than go forward, even if the journey leads to the cross. Without suffering, there can be no redemption.

Source: The Outermost House: A Year of Life On The Great Beach of Cape Cod

Source: The Summer Garden

Source: The Life of Poetry (1949), p. 169; part of this statement is also used in the "Introduction"
Context: In time of the crises of the spirit, we are aware of all of need, our need for each other and our need for ourselves. We call up our fullness; we turn, and act. We begin to be aware of correspondences, of the acknowledgement in us of necessity, and of the lands.
And poetry, among all this — where is there a place for poetry?
If poetry as it comes to us through action were all we had, it would be very much. For the dense and crucial moments, spoken under the stress of realization, full-bodied and compelling in their imagery, arrive with music, with our many kinds of theatre, and in the great prose. If we had these only, we would be open to the same influences, however diluted and applied. For these ways in which poetry reaches past the barriers set up by our culture, reaching toward those who refuse it in essential presence, are various, many-meaning, and certainly — in this period — more acceptable. They stand in the same relation to poetry as applied science to pure science.

Tarkan Q & A, Tarkan Translations, April 10, 2003 http://tarkantr.blogspot.com/2005/05/q.html,

The Pragmatics of Patriotism (1973)
Context: In this complex world, science, the scientific method, and the consequences of the scientific method are central to everything the human race is doing and to wherever we are going. If we blow ourselves up we will do it by misapplication of science; if we manage to keep from blowing ourselves up, it will be through intelligent application of science.

Comment prétendons-nous qu'un autre puisse garder notre secret, si nous ne pouvons le garder nous-mêmes?
Maxim 64 of the Maximes supprimées.
Later Additions to the Maxims