The key to successful research is collaboration and the sharing of knowledge across different disciplines.

The elements of consciousness are to be isolated by experimental means.

There is no point treating a depressed person as though she were just feeling sad, saying, 'There now, hang on, you'll get over it.' Sadness is more or less like a head cold- with patience, it passes. Depression is like cancer.

It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.