Thought and thinking 16 Intellect 8 Memory 8 Brain 7 International relations 6 Mnemonics 6 Speed reading 5 National security 4 Security, International 4 Creative thinking 3 Mental discipline 3 Creative ability 2 Mind and body 2 Self-actualization (Psychology) 2 Social systems 2 Aids and devices 1 Change (Psychology) 1 Creative ability in business 1 Examinations 1 Foreign relation 1 Foreign relations 1 Government policy 1 History 1 Intellec 1 Intellectual 1 International economic relations 1 International relation 1 International relationship 1 Interpersonal relations 1 Knowledge management 1