Pitt was silent.

'Have you ever thought about it?'

'Yes, sir. I have thought about it.'

'What conclusion did you come to?'

'To none, yet,' the young man answered slowly. 'It must depend.'

'On what?

'Partly,—on what conclusion I come to respecting something else,' Pitt went on in the same manner, which immediately fastened his mother's attention.

'Perhaps you will go on and explain yourself,' said his father. 'It is good that we should understand one another.'

Yet Pitt was silent.

'Is it anything private and secret?' his father asked, half laughing, although with a touch of sharp curiosity in his look.