This is a common experience among drug addicts who need stronger and stronger doses to regain the old 'kicks'.

For others it has turned the joy and love of praising God into a gladless fulfillment of “their obligation.”

The following values have been calculated for femurs, in units of square metres per giganewton, where 1 giganewton = 10⁹ newtons, and with body mass given in tonnes, where 1 tonne = 10³ kilograms.

andalusite, anorthosite, anthracite, erythrite, forsterite, graphite, hawleyite, titanite