In the same manner if any nation wasted part of its wealth, or lost part of its trade, it could not retain the same quantity of circulating medium which it before possessed.

Profits might also increase, because improvements might take place in agriculture, or in the implements of husbandry, which would augment the produce with the same cost of production.

The exchangeable value of all commodities, rises as the difficulties of their production increase.

By far the greatest part of those goods which are the objects of desire, are procured by labour; and they may be multiplied, not in one country alone, but in many, almost without any assignable limit, if we are disposed to bestow the labour necessary to obtain them.

We need to be more conversant with it because science is in our lives. It's in everything. It's in the food we eat. It's in the air we breathe. It's everywhere.

I am a passionate reader, having been tutored very early by my mother. I avidly devoured all books on chemistry that I could find. Formal chemistry at school seemed boring by comparison, and my performance was routine. In contrast, I did spectacularly well in mathematics and sailed through classes and exams with ease.

Biology will relate every human gene to the genes of other animals and bacteria, to this great chain of being.

We may take it to be the accepted idea that the Mosaic books were not handed down to us for our instruction in scientific knowledge, and that it is our duty to ground our scientific beliefs upon observation and inference, unmixed with considerations of a different order.