1.   I wished gays and lesbians could be free to concentrate on other difficult but less-loaded advances.

2.   Powell also told them their largely unheralded work in Afghanistan will become more difficult but more essential to a victory over terrorism.

3.   The Schmidts said the week is always difficult but that this year it was special because of the bill.

4.   They are part of a very difficult but natural, inevitable process that has driven the evolution of the human race.

5.   The market conditions are expected to be difficult but the board is confident that the company will continue to show improvements in its results for the current financial year.