Allemagne (1) Instruction and study (1) Discipline (1) Employment (1) Price-earnings ratio (1) Notions (Philosophy) (1) Technical literature (1) Speeches, addresses, etc (1) Revenge (1) Respect (1) Practice (Philosophy) (1) Pension trusts (1) Morale (1) Missionaries (1) Inheritance and succession (1) Homosexuality (1) Expression (1) Day (1) Concepts (1) Communication of technical information (1) Communication in science (1) Attention (1) Western countries (1) Design (1) Spectra (1) Sexual behavior (1) Practice (1) Marriage (1) Occupations (1) Ethics (1)