Whoever, at any time, has undertaken to build a new heaven has found the strength for it in his own hell.

The discipline of suffering, of great suffering- do you not know that only this discipline has created all enhancements of man so far? That tension of the soul in unhappiness which cultivates its strength, its shudders face to face with great ruin, its inventiveness and courage in enduring, preserving, interpreting, and exploiting suffering, and whatever has been granted to it of profundity, secret, mask, spirit, cunning, greatness - was it not granted to it through suffering, through the discipline of great suffering?

You feel your strength in the experience of pain.

He who is overly attached to his family members experiences fear and sorrow, for the root of all grief is attachment. Thus one should discard attachment to be happy.

Grief makes one hour ten.

There is nothing they [Russian leaders] admire so much as strength, and there is nothing for which they have less respect than for weakness, especially military weakness.