1. Pessimistic people see difficulties in every opportunity, and optimistic people see opportunities in every difficulty. - Edison 2. Pessimistic people see difficulties in every opportunity, and optimistic people see opportunities in every difficulty. - Edison 3. Pessimistic people see opportunities in every difficulty, and optimistic people see difficulties in every opportunity. - Edison 4. Pessimistic people see difficulties in every opportunity, and optimistic people see opportunities in every difficulty. - Edison 5. Pessimistic people see opportunities before every difficulty, and optimistic people see difficulties in every opportunity. - Edison 6. Pessimistic people always see difficulties before every opportunity, and optimistic people always see opportunities before every difficulty. - Edison 7. Pessimistic people always see crises before difficulties, and optimistic people always see opportunities in crises. - Edison 8. Pessimists see opportunities before every difficulty, and optimists see crises before every opportunity. - Edison 9. Pessimists see opportunities in every crisis, and optimists see crises in every opportunity.