“Whoever despises the high wisdom of mathematics nourishes himself on delusion and will never still the sophistic sciences whose only product is an eternal uproar.”

“A diamond is just a lump of coal that stuck to its job.”

“Make your work to be in keeping with your purpose”

“Nature is constrained by the cause of her laws which dwell inborn in her. Variant: Nature is constrained by the order of her own law which lives and works within her.”

“Every obstacle is destroyed through rigor.”

“What need the bridge much broader than the flood?”

“Away, you trifler! Love! I love thee not,I care not for thee, Kate: this is no worldTo play with mammets and to tilt with lips:We must have bloody noses and cracked crowns.”

“Waste not thy time in windy argument but let the matter drop.”