The Greek chemical treatises contain... a great amount of practical chemical information... fusion, calcination, solution, filtration, crystallization, sublimation and especially distillation; and methods of heating include the open fire, lamps, and the sand and water baths. Nearly all this practical knowledge... the Arabs... derived... from the very source we are now considering.
J. R. PartingtonRelated topics
baths chemical considering crystallization distillation fire fusion great heating knowledge now open sand source sublimation waterRelated quotes
How very paltry and limited the normal human intellect is, and how little lucidity there is in the human consciousness, may be judged from the fact that, despite the ephemeral brevity of human life, the uncertainty of our existence and the countless enigmas which press upon us from all sides, everyone does not continually and ceaselessly philosophize, but that only the rarest of exceptions do.
Arthur Schopenhauer
We grow great by dreams. All big men are dreamers. They see things in the soft haze of a spring day or in the red fire of a long winter's evening. Some of us let these dreams die, but others nourish and protect them nurse them through bad days till they bring them to the sunshine and light which comes always to those who hope that their dreams will come true.
Woodrow Wilson
What is the spiritual battle? Well, the soul is a garden divided into two parts. On one half are planted thorny bushes, and on the other half flowers. We also have a water pump with two taps and two channels. The one guides the water to the thorns and the other to the flowers. I always have the choice to open one or the other tap. I leave the thorns without water and they dry up, I water the flowers and they blossom.
Porphyrios of Kafsokalyvia
May the Lord teach you humility - the source of all calm. From humility peace and quiet flow into the heart. If we are handed the cup of suffering, let us accept it as the cup of salvation, as a pledge of eternal joy. He who refuses sorrows, rejects also salvation God allows the devil to strike us for the sake of our salvation and humility.
Ignatius Bryanchaninov
You wish, or rather, have decided, to remove a splinter from someone? Very well, but do not go after it with a stick instead of a lancet for you will only drive it deeper. Rough speech and harsh gestures are the stick, while even-tempered instruction and patient reprimand are the lancet. 'Reprove, rebuke, exhort,' says the Apostle (II Tim. 4:2), not 'batter'.
John Climacus