“To act nobly, a noble heart is not enough. It needs help from a sharp mind.”

Confessions Of A Sceptic
The Nemesis of Faith (1849)
Context: Say not they have their reward on earth in the calm satisfaction of noble desires, nobly gratified, in the sense of great works greatly done; that too may be, but neither do they ask for that. They alone never remember themselves; they know no end but to do the will which beats in their hearts' deep pulses. Ay, but for these, these few martyred heroes, it might be after all that the earth was but a huge loss-and-profit ledger book; or a toy machine some great angel had invented for the amusement of his nursery; and the storm and the sunshine but the tears and the smiles of laughter in which he and his baby cherubs dressed their faces over the grave and solemn airs of slow-paced respectability.
Yes, genius alone is the Redeemer; it bears our sorrows, it is crowned with thorns for us; the children of genius are the church militant, the army of the human race. Genius is the life, the law of mankind, itself perishing, that others may take possession and enjoy. Religion, freedom, science, law, the arts, mechanical or heautiful, all which gives respectability a chance, have heen moulded out by the toil and the sweat and the blood of the faithful; who, knowing no enjoyment, were content to he the servants of their own born slaves, and wrought out the happiness of the world which despised and disowned them.

Source: City of Heavenly Fire

Das Göttliche (The Divine) (1783)

Source: 1960s, Strength to Love (1963), Ch. 1 : A tough mind and a tender heart
Context: The tough mind is sharp and penetrating, breaking through the crust of legends and myths and sifting the true from the false. The tough-minded individual is astute and discerning. He has a strong austere quality that makes for firmness of purpose and solidness of commitment.
Who doubts that this toughness is one of man's greatest needs? Rarely do we find men who willingly engage in hard, solid thinking. There is an almost universal quest for easy answers and half-baked solutions. Nothing pains some people more than having to think.

"Chantars no pot gaire valer", line 1; translation from Alan R. Press Anthology of Troubadour Lyric Poetry (1971) p. 67.

Source: Dark Kiss

On his plans to use the Nobel Prize money to help fund peace organisations he has worked with, quoted in "Ahtisaari wins Nobel Peace Prize" in BBC News (10 October 2008) http://news.bbc.co.uk/2/hi/europe/7662922.stm

Source: The People Look Like Flowers at Last