It's no go the merry-go-round, it's no go the rickshaw, / All we want is a limousine and a ticket for the peepshow.

Mocks replace the objects with which your methods under test collaborate, thus offering a layer of isolation.

Analysis of the actual data is plotted as a solid line, the corresponding distribution made by superimposing Poissonians is shown as a dotted line, and the exponential decay with same mean interval as the solid line is shown as a dashed line.

I had a certain grim pleasure in reading letters from two or three literary men, asking for work ‘as secretary or companion,’ or failing that, for the loan of a little cash to ‘tide over present difficulties.’